diff --git a/tests/common_func.sh b/PTDN/common_func.sh
similarity index 100%
rename from tests/common_func.sh
rename to PTDN/common_func.sh
diff --git a/tests/compare_results.py b/PTDN/compare_results.py
similarity index 100%
rename from tests/compare_results.py
rename to PTDN/compare_results.py
diff --git a/tests/configs/det_mv3_db.yml b/PTDN/configs/det_mv3_db.yml
similarity index 100%
rename from tests/configs/det_mv3_db.yml
rename to PTDN/configs/det_mv3_db.yml
diff --git a/tests/configs/det_r50_vd_db.yml b/PTDN/configs/det_r50_vd_db.yml
similarity index 100%
rename from tests/configs/det_r50_vd_db.yml
rename to PTDN/configs/det_r50_vd_db.yml
diff --git a/tests/configs/ppocr_det_mobile_params.txt b/PTDN/configs/ppocr_det_mobile_params.txt
similarity index 95%
rename from tests/configs/ppocr_det_mobile_params.txt
rename to PTDN/configs/ppocr_det_mobile_params.txt
index 5edb14cdbf8eef87b5b5558cbd8d1a2ff54ae919..3d2117d7ca9b444f55b9c9f343647026af7e97c6 100644
--- a/tests/configs/ppocr_det_mobile_params.txt
+++ b/PTDN/configs/ppocr_det_mobile_params.txt
@@ -1,9 +1,9 @@
 ===========================train_params===========================
 model_name:ocr_det
 python:python3.7
-gpu_list:0|0,1
-Global.use_gpu:True|True
-Global.auto_cast:null
+gpu_list:0|0,1|10.21.226.181,10.21.226.133;0,1
+Global.use_gpu:True|True|True
+Global.auto_cast:fp32|amp
 Global.epoch_num:lite_train_infer=1|whole_train_infer=300
 Global.save_model_dir:./output/
 Train.loader.batch_size_per_card:lite_train_infer=2|whole_train_infer=4
@@ -65,6 +65,8 @@ inference:./deploy/cpp_infer/build/ppocr det
 null:null
 --benchmark:True
 ===========================serving_params===========================
+model_name:ocr_det
+python:python3.7
 trans_model:-m paddle_serving_client.convert
 --dirname:./inference/ch_ppocr_mobile_v2.0_det_infer/
 --model_filename:inference.pdmodel
@@ -82,17 +84,17 @@ pipline:pipeline_http_client.py --image_dir=../../doc/imgs
 ===========================kl_quant_params===========================
 infer_model:./inference/ch_ppocr_mobile_v2.0_det_infer/
 infer_export:tools/export_model.py -c configs/det/ch_ppocr_v2.0/ch_det_mv3_db_v2.0.yml -o
-infer_quant:False
+infer_quant:True
 inference:tools/infer/predict_det.py
 --use_gpu:True|False
 --enable_mkldnn:True|False
 --cpu_threads:1|6
 --rec_batch_num:1
 --use_tensorrt:False|True
---precision:fp32|fp16|int8
+--precision:int8
 --det_model_dir:
 --image_dir:./inference/ch_det_data_50/all-sum-510/
 null:null
 --benchmark:True
 null:null
-null:null
\ No newline at end of file
+null:null
diff --git a/tests/configs/ppocr_det_server_params.txt b/PTDN/configs/ppocr_det_server_params.txt
similarity index 57%
rename from tests/configs/ppocr_det_server_params.txt
rename to PTDN/configs/ppocr_det_server_params.txt
index b3df1735e50d941b34eeb274c28eb4ce50d79292..bba4ef44f769ed16671ead55a0eba6ee986aaaaa 100644
--- a/tests/configs/ppocr_det_server_params.txt
+++ b/PTDN/configs/ppocr_det_server_params.txt
@@ -49,4 +49,35 @@ inference:tools/infer/predict_det.py
 --save_log_path:null
 --benchmark:True
 null:null
-
+===========================cpp_infer_params===========================
+use_opencv:True
+infer_model:./inference/ch_ppocr_server_v2.0_det_infer/
+infer_quant:False
+inference:./deploy/cpp_infer/build/ppocr det
+--use_gpu:True|False
+--enable_mkldnn:True|False
+--cpu_threads:1|6
+--rec_batch_num:1
+--use_tensorrt:False|True
+--precision:fp32|fp16
+--det_model_dir:
+--image_dir:./inference/ch_det_data_50/all-sum-510/
+null:null
+--benchmark:True
+===========================serving_params===========================
+model_name:ocr_det_server
+python:python3.7
+trans_model:-m paddle_serving_client.convert
+--dirname:./inference/ch_ppocr_server_v2.0_det_infer/
+--model_filename:inference.pdmodel
+--params_filename:inference.pdiparams
+--serving_server:./deploy/pdserving/ppocr_det_mobile_2.0_serving/
+--serving_client:./deploy/pdserving/ppocr_det_mobile_2.0_client/
+serving_dir:./deploy/pdserving
+web_service:web_service_det.py --config=config.yml --opt op.det.concurrency=1
+op.det.local_service_conf.devices:null|0
+op.det.local_service_conf.use_mkldnn:True|False
+op.det.local_service_conf.thread_num:1|6
+op.det.local_service_conf.use_trt:False|True
+op.det.local_service_conf.precision:fp32|fp16|int8
+pipline:pipeline_http_client.py --image_dir=../../doc/imgs
diff --git a/tests/configs/ppocr_rec_mobile_params.txt b/PTDN/configs/ppocr_rec_mobile_params.txt
similarity index 98%
rename from tests/configs/ppocr_rec_mobile_params.txt
rename to PTDN/configs/ppocr_rec_mobile_params.txt
index f9c407897269d4729b9cab7313c45fe69712c62d..f3f3a54e14e042693d28559e487852a079f77bdd 100644
--- a/tests/configs/ppocr_rec_mobile_params.txt
+++ b/PTDN/configs/ppocr_rec_mobile_params.txt
@@ -65,6 +65,8 @@ inference:./deploy/cpp_infer/build/ppocr rec
 null:null
 --benchmark:True
 ===========================serving_params===========================
+model_name:ocr_rec
+python:python3.7
 trans_model:-m paddle_serving_client.convert
 --dirname:./inference/ch_ppocr_mobile_v2.0_rec_infer/
 --model_filename:inference.pdmodel
@@ -78,4 +80,4 @@ op.rec.local_service_conf.use_mkldnn:True|False
 op.rec.local_service_conf.thread_num:1|6
 op.rec.local_service_conf.use_trt:False|True
 op.rec.local_service_conf.precision:fp32|fp16|int8
-pipline:pipeline_http_client.py --image_dir=../../doc/imgs_words_en
\ No newline at end of file
+pipline:pipeline_http_client.py --image_dir=../../doc/imgs_words_en
diff --git a/tests/configs/ppocr_rec_server_params.txt b/PTDN/configs/ppocr_rec_server_params.txt
similarity index 93%
rename from tests/configs/ppocr_rec_server_params.txt
rename to PTDN/configs/ppocr_rec_server_params.txt
index 7d151fcf0b793bd0bf63ac925c9ef3cf0ff56557..77961e8e651e0d770dae64860cc129aa2d50dcf2 100644
--- a/tests/configs/ppocr_rec_server_params.txt
+++ b/PTDN/configs/ppocr_rec_server_params.txt
@@ -65,12 +65,14 @@ inference:./deploy/cpp_infer/build/ppocr rec
 null:null
 --benchmark:True
 ===========================serving_params===========================
+model_name:ocr_server_rec
+python:python3.7
 trans_model:-m paddle_serving_client.convert
 --dirname:./inference/ch_ppocr_server_v2.0_rec_infer/
 --model_filename:inference.pdmodel
 --params_filename:inference.pdiparams
---serving_server:./deploy/pdserving/ppocr_rec_server_2.0_serving/
---serving_client:./deploy/pdserving/ppocr_rec_server_2.0_client/
+--serving_server:./deploy/pdserving/ppocr_rec_mobile_2.0_serving/
+--serving_client:./deploy/pdserving/ppocr_rec_mobile_2.0_client/
 serving_dir:./deploy/pdserving
 web_service:web_service_rec.py --config=config.yml --opt op.rec.concurrency=1
 op.rec.local_service_conf.devices:null|0
@@ -78,4 +80,4 @@ op.rec.local_service_conf.use_mkldnn:True|False
 op.rec.local_service_conf.thread_num:1|6
 op.rec.local_service_conf.use_trt:False|True
 op.rec.local_service_conf.precision:fp32|fp16|int8
-pipline:pipeline_http_client.py --image_dir=../../doc/imgs_words_en
\ No newline at end of file
+pipline:pipeline_http_client.py --image_dir=../../doc/imgs_words_en
diff --git a/tests/configs/ppocr_sys_mobile_params.txt b/PTDN/configs/ppocr_sys_mobile_params.txt
similarity index 100%
rename from tests/configs/ppocr_sys_mobile_params.txt
rename to PTDN/configs/ppocr_sys_mobile_params.txt
diff --git a/tests/configs/ppocr_sys_server_params.txt b/PTDN/configs/ppocr_sys_server_params.txt
similarity index 100%
rename from tests/configs/ppocr_sys_server_params.txt
rename to PTDN/configs/ppocr_sys_server_params.txt
diff --git a/tests/configs/rec_icdar15_r34_train.yml b/PTDN/configs/rec_icdar15_r34_train.yml
similarity index 100%
rename from tests/configs/rec_icdar15_r34_train.yml
rename to PTDN/configs/rec_icdar15_r34_train.yml
diff --git a/PTDN/docs/compare_cpp_right.png b/PTDN/docs/compare_cpp_right.png
new file mode 100644
index 0000000000000000000000000000000000000000..f9d0ba8ef8007ebc95ebffe2d593ff9e90066343
Binary files /dev/null and b/PTDN/docs/compare_cpp_right.png differ
diff --git a/PTDN/docs/compare_cpp_wrong.png b/PTDN/docs/compare_cpp_wrong.png
new file mode 100644
index 0000000000000000000000000000000000000000..621d446bbbe9ba10c3069ef5e59c463b714d42ad
Binary files /dev/null and b/PTDN/docs/compare_cpp_wrong.png differ
diff --git a/tests/docs/compare_right.png b/PTDN/docs/compare_right.png
similarity index 100%
rename from tests/docs/compare_right.png
rename to PTDN/docs/compare_right.png
diff --git a/tests/docs/compare_wrong.png b/PTDN/docs/compare_wrong.png
similarity index 100%
rename from tests/docs/compare_wrong.png
rename to PTDN/docs/compare_wrong.png
diff --git a/tests/docs/guide.png b/PTDN/docs/guide.png
similarity index 100%
rename from tests/docs/guide.png
rename to PTDN/docs/guide.png
diff --git a/PTDN/docs/install.md b/PTDN/docs/install.md
new file mode 100644
index 0000000000000000000000000000000000000000..28b92426fa04da79ce63381fffa9f52a0f42813f
--- /dev/null
+++ b/PTDN/docs/install.md
@@ -0,0 +1,48 @@
+
+## 环境配置
+
+本教程适用于PTDN目录下基础功能测试的运行环境搭建。
+
+推荐环境：
+- CUDA 10.1
+- CUDNN 7.6
+- TensorRT 6.1.0.5 / 7.1
+
+
+推荐docker镜像安装，按照如下命令创建镜像，当前目录映射到镜像中的`/paddle`目录下
+```
+nvidia-docker run --name paddle -it -v $PWD:/paddle paddlepaddle/paddle:latest-dev-cuda10.1-cudnn7-gcc82 /bin/bash
+cd /paddle
+
+# 安装带TRT的paddle
+pip3.7 install https://paddle-wheel.bj.bcebos.com/with-trt/2.1.3/linux-gpu-cuda10.1-cudnn7-mkl-gcc8.2-trt6-avx/paddlepaddle_gpu-2.1.3.post101-cp37-cp37m-linux_x86_64.whl
+
+# 安装AutoLog
+git clone https://github.com/LDOUBLEV/AutoLog
+cd AutoLog
+pip3.7 install -r requirements.txt
+python3.7 setup.py bdist_wheel
+pip3.7 install ./dist/auto_log-1.0.0-py3-none-any.whl
+
+
+# 下载OCR代码
+cd ../
+git clone https://github.com/PaddlePaddle/PaddleOCR
+
+```
+
+安装PaddleOCR依赖：
+```
+cd PaddleOCR
+pip3.7 install -r requirements.txt
+```
+
+## FAQ :
+Q. You are using Paddle compiled with TensorRT, but TensorRT dynamic library is not found. Ignore this if TensorRT is not needed.
+
+A. 问题一般是当前安装paddle版本带TRT，但是本地环境找不到TensorRT的预测库，需要下载TensorRT库，解压后设置环境变量LD_LIBRARY_PATH;
+如：
+```
+export LD_LIBRARY_PATH=/usr/local/python3.7.0/lib:/usr/local/nvidia/lib:/usr/local/nvidia/lib64:/paddle/package/TensorRT-6.0.1.5/lib
+```
+或者问题是下载的TensorRT版本和当前paddle中编译的TRT版本不匹配，需要下载版本相符的TRT。
diff --git a/PTDN/docs/test.png b/PTDN/docs/test.png
new file mode 100644
index 0000000000000000000000000000000000000000..f99f23d7050eb61879cf317c0d7728ef14531b08
Binary files /dev/null and b/PTDN/docs/test.png differ
diff --git a/PTDN/docs/test_inference_cpp.md b/PTDN/docs/test_inference_cpp.md
new file mode 100644
index 0000000000000000000000000000000000000000..25db1b5b6b1aa101a8f8969cfae3efc02e542971
--- /dev/null
+++ b/PTDN/docs/test_inference_cpp.md
@@ -0,0 +1,60 @@
+# C++预测功能测试
+
+C++预测功能测试的主程序为`test_inference_cpp.sh`，可以测试基于C++预测库的模型推理功能。
+
+## 1. 测试结论汇总
+
+基于训练是否使用量化，进行本测试的模型可以分为`正常模型`和`量化模型`，这两类模型对应的C++预测功能汇总如下：
+
+| 模型类型 |device | batchsize | tensorrt | mkldnn | cpu多线程 |
+|  ----   |  ---- |   ----   |  :----:  |   :----:   |  :----:  |
+| 正常模型 | GPU | 1/6 | fp32/fp16 | - | - |
+| 正常模型 | CPU | 1/6 | - | fp32 | 支持 |
+| 量化模型 | GPU | 1/6 | int8 | - | - |
+| 量化模型 | CPU | 1/6 | - | int8 | 支持 |
+
+## 2. 测试流程
+### 2.1 功能测试
+先运行`prepare.sh`准备数据和模型，然后运行`test_inference_cpp.sh`进行测试，最终在```PTDN/output```目录下生成`cpp_infer_*.log`后缀的日志文件。
+
+```shell
+bash PTDN/prepare.sh ./PTDN/configs/ppocr_det_mobile_params.txt "cpp_infer"
+
+# 用法1:
+bash PTDN/test_inference_cpp.sh ./PTDN/configs/ppocr_det_mobile_params.txt
+# 用法2: 指定GPU卡预测，第三个传入参数为GPU卡号
+bash PTDN/test_inference_cpp.sh ./PTDN/configs/ppocr_det_mobile_params.txt '1'
+```  
+
+
+### 2.2 精度测试
+
+使用compare_results.py脚本比较模型预测的结果是否符合预期，主要步骤包括：
+- 提取日志中的预测坐标；
+- 从本地文件中提取保存好的坐标结果；
+- 比较上述两个结果是否符合精度预期，误差大于设置阈值时会报错。
+
+#### 使用方式
+运行命令：
+```shell
+python3.7 PTDN/compare_results.py --gt_file=./PTDN/results/cpp_*.txt  --log_file=./PTDN/output/cpp_*.log --atol=1e-3 --rtol=1e-3
+```
+
+参数介绍：  
+- gt_file： 指向事先保存好的预测结果路径，支持*.txt 结尾，会自动索引*.txt格式的文件，文件默认保存在PTDN/result/ 文件夹下
+- log_file: 指向运行PTDN/test_inference_cpp.sh 脚本的infer模式保存的预测日志，预测日志中打印的有预测结果，比如：文本框，预测文本，类别等等，同样支持cpp_infer_*.log格式传入
+- atol: 设置的绝对误差
+- rtol: 设置的相对误差
+
+#### 运行结果
+
+正常运行效果如下图：
+<img src="compare_cpp_right.png" width="1000">
+
+出现不一致结果时的运行输出：
+<img src="compare_cpp_wrong.png" width="1000">
+
+
+## 3. 更多教程
+
+本文档为功能测试用，更详细的c++预测使用教程请参考：[服务器端C++预测](https://github.com/PaddlePaddle/PaddleOCR/tree/dygraph/deploy/cpp_infer)  
diff --git a/PTDN/docs/test_serving.md b/PTDN/docs/test_serving.md
new file mode 100644
index 0000000000000000000000000000000000000000..c6b35630392249ea969585c69a9e4c3d35f1cf52
--- /dev/null
+++ b/PTDN/docs/test_serving.md
@@ -0,0 +1,78 @@
+# PaddleServing预测功能测试
+
+PaddleServing预测功能测试的主程序为`test_serving.sh`，可以测试基于PaddleServing的部署功能。
+
+## 1. 测试结论汇总
+
+基于训练是否使用量化，进行本测试的模型可以分为`正常模型`和`量化模型`，这两类模型对应的C++预测功能汇总如下：
+
+| 模型类型 |device | batchsize | tensorrt | mkldnn | cpu多线程 |
+|  ----   |  ---- |   ----   |  :----:  |   :----:   |  :----:  |
+| 正常模型 | GPU | 1/6 | fp32/fp16 | - | - |
+| 正常模型 | CPU | 1/6 | - | fp32 | 支持 |
+| 量化模型 | GPU | 1/6 | int8 | - | - |
+| 量化模型 | CPU | 1/6 | - | int8 | 支持 |
+
+## 2. 测试流程
+### 2.1 功能测试
+先运行`prepare.sh`准备数据和模型，然后运行`test_serving.sh`进行测试，最终在```PTDN/output```目录下生成`serving_infer_*.log`后缀的日志文件。
+
+```shell
+bash PTDN/prepare.sh ./PTDN/configs/ppocr_det_mobile_params.txt "serving_infer"
+
+# 用法:
+bash PTND/test_serving.sh ./PTDN/configs/ppocr_det_mobile_params.txt
+```  
+
+#### 运行结果
+
+各测试的运行情况会打印在 `PTDN/output/results_serving.log` 中：
+运行成功时会输出：
+
+```
+Run successfully  with command - python3.7 pipeline_http_client.py --image_dir=../../doc/imgs > ../../tests/output/server_infer_cpu_usemkldnn_True_threads_1_batchsize_1.log 2>&1 !
+Run successfully  with command - xxxxx
+...
+```
+
+运行失败时会输出：
+
+```
+Run failed with command - python3.7 pipeline_http_client.py --image_dir=../../doc/imgs > ../../tests/output/server_infer_cpu_usemkldnn_True_threads_1_batchsize_1.log 2>&1 !
+Run failed with command - python3.7 pipeline_http_client.py --image_dir=../../doc/imgs > ../../tests/output/server_infer_cpu_usemkldnn_True_threads_6_batchsize_1.log 2>&1 !
+Run failed with command - xxxxx
+...
+```
+
+详细的预测结果会存在 PTDN/output/ 文件夹下，例如`server_infer_gpu_usetrt_True_precision_fp16_batchsize_1.log`中会返回检测框的坐标:
+
+```
+{'err_no': 0, 'err_msg': '', 'key': ['dt_boxes'], 'value': ['[[[ 78. 642.]\n  [409. 640.]\n  [409. 657.]\n  
+[ 78. 659.]]\n\n [[ 75. 614.]\n  [211. 614.]\n      [211. 635.]\n  [ 75. 635.]]\n\n
+[[103. 554.]\n  [135. 554.]\n  [135. 575.]\n  [103. 575.]]\n\n [[ 75. 531.]\n  
+[347. 531.]\n  [347. 549.]\n  [ 75. 549.]    ]\n\n [[ 76. 503.]\n  [309. 498.]\n  
+[309. 521.]\n  [ 76. 526.]]\n\n [[163. 462.]\n  [317. 462.]\n  [317. 493.]\n  
+[163. 493.]]\n\n [[324. 431.]\n  [414.     431.]\n  [414. 452.]\n  [324. 452.]]\n\n
+[[ 76. 412.]\n  [208. 408.]\n  [209. 424.]\n  [ 76. 428.]]\n\n [[307. 409.]\n  
+[428. 409.]\n  [428. 426.]\n  [307    . 426.]]\n\n [[ 74. 385.]\n  [217. 382.]\n  
+[217. 400.]\n  [ 74. 403.]]\n\n [[308. 381.]\n  [427. 380.]\n  [427. 400.]\n  
+[308. 401.]]\n\n [[ 74. 363.]\n      [195. 362.]\n  [195. 378.]\n  [ 74. 379.]]\n\n
+[[303. 359.]\n  [423. 357.]\n  [423. 375.]\n  [303. 377.]]\n\n [[ 70. 336.]\n  
+[239. 334.]\n  [239. 354.]\    n  [ 70. 356.]]\n\n [[ 70. 312.]\n  [204. 310.]\n  
+[204. 327.]\n  [ 70. 330.]]\n\n [[303. 308.]\n  [419. 306.]\n  [419. 326.]\n  
+[303. 328.]]\n\n [[113. 2    72.]\n  [246. 270.]\n  [247. 299.]\n  [113. 301.]]\n\n
+ [[361. 269.]\n  [384. 269.]\n  [384. 296.]\n  [361. 296.]]\n\n [[ 70. 250.]\n
+ [243. 246.]\n  [243.     265.]\n  [ 70. 269.]]\n\n [[ 65. 221.]\n  [187. 220.]\n  
+[187. 240.]\n  [ 65. 241.]]\n\n [[337. 216.]\n  [382. 216.]\n  [382. 240.]\n  
+[337. 240.]]\n\n [    [ 65. 196.]\n  [247. 193.]\n  [247. 213.]\n  [ 65. 216.]]\n\n
+[[296. 197.]\n  [423. 191.]\n  [424. 209.]\n  [296. 215.]]\n\n [[ 65. 167.]\n  [244. 167.]\n  
+[244. 186.]\n  [ 65. 186.]]\n\n [[ 67. 139.]\n  [290. 139.]\n  [290. 159.]\n  [ 67. 159.]]\n\n
+[[ 68. 113.]\n  [410. 113.]\n  [410. 128.]\n  [ 68. 129.]    ]\n\n [[277.  87.]\n  [416.  87.]\n  
+[416. 108.]\n  [277. 108.]]\n\n [[ 79.  28.]\n  [132.  28.]\n  [132.  62.]\n  [ 79.  62.]]\n\n
+[[163.  17.]\n  [410.      14.]\n  [410.  50.]\n  [163.  53.]]]']}
+```
+
+
+## 3. 更多教程
+
+本文档为功能测试用，更详细的Serving预测使用教程请参考：[PPOCR 服务化部署](https://github.com/PaddlePaddle/PaddleOCR/blob/dygraph/deploy/pdserving/README_CN.md)  
diff --git a/PTDN/docs/test_train_inference_python.md b/PTDN/docs/test_train_inference_python.md
new file mode 100644
index 0000000000000000000000000000000000000000..89885ddfa3c1f36a120d713e39689767f8fc6342
--- /dev/null
+++ b/PTDN/docs/test_train_inference_python.md
@@ -0,0 +1,119 @@
+# 基础训练预测功能测试
+
+基础训练预测功能测试的主程序为`test_train_inference_python.sh`，可以测试基于Python的模型训练、评估、推理等基本功能，包括裁剪、量化、蒸馏。
+
+## 1. 测试结论汇总
+
+- 训练相关：
+
+| 算法名称 | 模型名称 | 单机单卡 | 单机多卡 | 多机多卡 | 模型压缩（单机多卡） |
+|  :----  |   :----  |    :----  |  :----   |  :----   |  :----   |
+|  DB  | ch_ppocr_mobile_v2.0_det| 正常训练 <br> 混合精度 | 正常训练 <br> 混合精度 | 正常训练 <br> 混合精度 | 正常训练：FPGM裁剪、PACT量化 <br> 离线量化（无需训练） |
+|  DB  | ch_ppocr_server_v2.0_det| 正常训练 <br> 混合精度 | 正常训练 <br> 混合精度 | 正常训练 <br> 混合精度 | 正常训练：FPGM裁剪、PACT量化 <br> 离线量化（无需训练） |
+| CRNN | ch_ppocr_mobile_v2.0_rec| 正常训练 <br> 混合精度 | 正常训练 <br> 混合精度 | 正常训练 <br> 混合精度 | 正常训练：PACT量化 <br> 离线量化（无需训练） |
+| CRNN | ch_ppocr_server_v2.0_rec| 正常训练 <br> 混合精度 | 正常训练 <br> 混合精度 | 正常训练 <br> 混合精度 | 正常训练：PACT量化 <br> 离线量化（无需训练） |
+|PP-OCR| ch_ppocr_mobile_v2.0| 正常训练 <br> 混合精度 | 正常训练 <br> 混合精度 | 正常训练 <br> 混合精度 | - |
+|PP-OCR| ch_ppocr_server_v2.0| 正常训练 <br> 混合精度 | 正常训练 <br> 混合精度 | 正常训练 <br> 混合精度 | - |
+|PP-OCRv2| ch_PP-OCRv2 | 正常训练 <br> 混合精度 | 正常训练 <br> 混合精度 | 正常训练 <br> 混合精度 | - |
+
+
+- 预测相关：基于训练是否使用量化，可以将训练产出的模型可以分为`正常模型`和`量化模型`，这两类模型对应的预测功能汇总如下，
+
+| 模型类型 |device | batchsize | tensorrt | mkldnn | cpu多线程 |
+|  ----   |  ---- |   ----   |  :----:  |   :----:   |  :----:  |
+| 正常模型 | GPU | 1/6 | fp32/fp16 | - | - |
+| 正常模型 | CPU | 1/6 | - | fp32 | 支持 |
+| 量化模型 | GPU | 1/6 | int8 | - | - |
+| 量化模型 | CPU | 1/6 | - | int8 | 支持 |
+
+
+## 2. 测试流程
+### 2.1 安装依赖
+- 安装PaddlePaddle >= 2.0
+- 安装PaddleOCR依赖
+    ```
+    pip3 install  -r ../requirements.txt
+    ```
+- 安装autolog（规范化日志输出工具）
+    ```
+    git clone https://github.com/LDOUBLEV/AutoLog
+    cd AutoLog
+    pip3 install -r requirements.txt
+    python3 setup.py bdist_wheel
+    pip3 install ./dist/auto_log-1.0.0-py3-none-any.whl
+    cd ../
+    ```
+
+
+### 2.2 功能测试
+先运行`prepare.sh`准备数据和模型，然后运行`test_train_inference_python.sh`进行测试，最终在```PTDN/output```目录下生成`python_infer_*.log`格式的日志文件。
+
+
+`test_train_inference_python.sh`包含5种运行模式，每种模式的运行数据不同，分别用于测试速度和精度，分别是：
+
+- 模式1：lite_train_infer，使用少量数据训练，用于快速验证训练到预测的走通流程，不验证精度和速度；
+```shell
+bash PTDN/prepare.sh ./PTDN/configs/ppocr_det_mobile_params.txt 'lite_train_infer'
+bash PTDN/test_train_inference_python.sh ./PTDN/configs/ppocr_det_mobile_params.txt 'lite_train_infer'
+```  
+
+- 模式2：whole_infer，使用少量数据训练，一定量数据预测，用于验证训练后的模型执行预测，预测速度是否合理；
+```shell
+bash PTDN/prepare.sh ./PTDN/configs/ppocr_det_mobile_params.txt 'whole_infer'
+bash PTDN/test_train_inference_python.sh ./PTDN/configs/ppocr_det_mobile_params.txt 'whole_infer'
+```  
+
+- 模式3：infer，不训练，全量数据预测，走通开源模型评估、动转静，检查inference model预测时间和精度;
+```shell
+bash PTDN/prepare.sh ./PTDN/configs/ppocr_det_mobile_params.txt 'infer'
+# 用法1:
+bash PTDN/test_train_inference_python.sh ./PTDN/configs/ppocr_det_mobile_params.txt 'infer'
+# 用法2: 指定GPU卡预测，第三个传入参数为GPU卡号
+bash PTDN/test_train_inference_python.sh ./PTDN/configs/ppocr_det_mobile_params.txt 'infer' '1'
+```  
+
+- 模式4：whole_train_infer，CE： 全量数据训练，全量数据预测，验证模型训练精度，预测精度，预测速度；
+```shell
+bash PTDN/prepare.sh ./PTDN/configs/ppocr_det_mobile_params.txt 'whole_train_infer'
+bash PTDN/test_train_inference_python.sh ./PTDN/configs/ppocr_det_mobile_params.txt 'whole_train_infer'
+```  
+
+- 模式5：klquant_infer，测试离线量化；
+```shell
+bash PTDN/prepare.sh ./PTDN/configs/ppocr_det_mobile_params.txt 'klquant_infer'
+bash PTDN/test_train_inference_python.sh PTDN/configs/ppocr_det_mobile_params.txt  'klquant_infer'
+```
+
+
+### 2.3 精度测试
+
+使用compare_results.py脚本比较模型预测的结果是否符合预期，主要步骤包括：
+- 提取日志中的预测坐标；
+- 从本地文件中提取保存好的坐标结果；
+- 比较上述两个结果是否符合精度预期，误差大于设置阈值时会报错。
+
+#### 使用方式
+运行命令：
+```shell
+python3.7 PTDN/compare_results.py --gt_file=./PTDN/results/python_*.txt  --log_file=./PTDN/output/python_*.log --atol=1e-3 --rtol=1e-3
+```
+
+参数介绍：  
+- gt_file： 指向事先保存好的预测结果路径，支持*.txt 结尾，会自动索引*.txt格式的文件，文件默认保存在PTDN/result/ 文件夹下
+- log_file: 指向运行PTDN/test_train_inference_python.sh 脚本的infer模式保存的预测日志，预测日志中打印的有预测结果，比如：文本框，预测文本，类别等等，同样支持python_infer_*.log格式传入
+- atol: 设置的绝对误差
+- rtol: 设置的相对误差
+
+#### 运行结果
+
+正常运行效果如下图：
+<img src="compare_right.png" width="1000">
+
+出现不一致结果时的运行输出：
+<img src="compare_wrong.png" width="1000">
+
+
+## 3. 更多教程
+本文档为功能测试用，更丰富的训练预测使用教程请参考：  
+[模型训练](https://github.com/PaddlePaddle/PaddleOCR/blob/dygraph/doc/doc_ch/training.md)  
+[基于Python预测引擎推理](https://github.com/PaddlePaddle/PaddleOCR/blob/dygraph/doc/doc_ch/inference.md)
diff --git a/tests/prepare.sh b/PTDN/prepare.sh
similarity index 99%
rename from tests/prepare.sh
rename to PTDN/prepare.sh
index abb84c881e52ca8076f218e926d41679b6578d09..d842f4f573d0b1bd697bdad9b67a765ebcf6da6c 100644
--- a/tests/prepare.sh
+++ b/PTDN/prepare.sh
@@ -134,5 +134,5 @@ if [ ${MODE} = "serving_infer" ];then
     wget -nc  -P ./inference https://paddleocr.bj.bcebos.com/dygraph_v2.0/ch/ch_ppocr_mobile_v2.0_rec_infer.tar
     wget -nc  -P ./inference https://paddleocr.bj.bcebos.com/dygraph_v2.0/ch/ch_ppocr_server_v2.0_det_infer.tar
     wget -nc  -P ./inference https://paddleocr.bj.bcebos.com/dygraph_v2.0/ch/ch_ppocr_server_v2.0_rec_infer.tar
-    cd ./inference && tar xf ch_ppocr_mobile_v2.0_det_infer.tar && tar xf ch_ppocr_mobile_v2.0_rec_infer.tar && tar xf ch_ppocr_server_v2.0_rec_infer.tar && tar xf ch_ppocr_server_v2.0_det_infer.tar cd ../
+    cd ./inference && tar xf ch_ppocr_mobile_v2.0_det_infer.tar && tar xf ch_ppocr_mobile_v2.0_rec_infer.tar && tar xf ch_ppocr_server_v2.0_rec_infer.tar && tar xf ch_ppocr_server_v2.0_det_infer.tar && cd ../
 fi
diff --git a/PTDN/readme.md b/PTDN/readme.md
new file mode 100644
index 0000000000000000000000000000000000000000..71e888a2fe05a0a6d700b40250dd80d5f6d041e0
--- /dev/null
+++ b/PTDN/readme.md
@@ -0,0 +1,110 @@
+
+# 推理部署导航
+
+## 1. 简介
+
+飞桨除了基本的模型训练和预测，还提供了支持多端多平台的高性能推理部署工具。本文档提供了PaddleOCR中所有模型的推理部署导航PTDN（Paddle Train Deploy Navigation），方便用户查阅每种模型的推理部署打通情况，并可以进行一键测试。
+
+<div align="center">
+    <img src="docs/guide.png" width="1000">
+</div>
+
+## 2. 汇总信息
+
+打通情况汇总如下，已填写的部分表示可以使用本工具进行一键测试，未填写的表示正在支持中。
+
+**字段说明：**
+- 基础训练预测：包括模型训练、Paddle Inference Python预测。
+- 更多训练方式：包括多机多卡、混合精度。
+- 模型压缩：包括裁剪、离线/在线量化、蒸馏。
+- 其他预测部署：包括Paddle Inference C++预测、Paddle Serving部署、Paddle-Lite部署等。
+
+更详细的mkldnn、Tensorrt等预测加速相关功能的支持情况可以查看各测试工具的[更多教程](#more)。
+
+| 算法论文 | 模型名称 | 模型类型 | 基础<br>训练预测 | 更多<br>训练方式 | 模型压缩 |  其他预测部署  |
+| :--- | :--- |  :----:  | :--------: |  :----  |   :----  |   :----  |
+| DB     |ch_ppocr_mobile_v2.0_det | 检测  | 支持 | 多机多卡 <br> 混合精度 | FPGM裁剪 <br> 离线量化| Paddle Inference: C++ <br> Paddle Serving: Python, C++ <br> Paddle-Lite: <br> (1) ARM CPU(C++) |
+| DB     |ch_ppocr_server_v2.0_det | 检测  | 支持 | 多机多卡 <br> 混合精度 | FPGM裁剪 <br> 离线量化| Paddle Inference: C++ <br> Paddle Serving: Python, C++ <br> Paddle-Lite: <br> (1) ARM CPU(C++) |
+| DB     |ch_PP-OCRv2_det          | 检测  |
+| CRNN   |ch_ppocr_mobile_v2.0_rec | 识别  | 支持 | 多机多卡 <br> 混合精度 | PACT量化 <br> 离线量化| Paddle Inference: C++ <br> Paddle Serving: Python, C++ <br> Paddle-Lite: <br> (1) ARM CPU(C++) |
+| CRNN   |ch_ppocr_server_v2.0_rec | 识别  | 支持 | 多机多卡 <br> 混合精度 | PACT量化 <br> 离线量化| Paddle Inference: C++ <br> Paddle Serving: Python, C++ <br> Paddle-Lite: <br> (1) ARM CPU(C++) |
+| CRNN   |ch_PP-OCRv2_rec          | 识别  |
+| PP-OCR |ch_ppocr_mobile_v2.0 | 检测+识别  | 支持 | 多机多卡 <br> 混合精度 | - | Paddle Inference: C++ <br> Paddle Serving: Python, C++ <br> Paddle-Lite: <br> (1) ARM CPU(C++) |
+| PP-OCR |ch_ppocr_server_v2.0 | 检测+识别  | 支持 | 多机多卡 <br> 混合精度 | - | Paddle Inference: C++ <br> Paddle Serving: Python, C++ <br> Paddle-Lite: <br> (1) ARM CPU(C++) |
+|PP-OCRv2|ch_PP-OCRv2 | 检测+识别  |
+| DB     |det_mv3_db_v2.0                | 检测  |
+| DB     |det_r50_vd_db_v2.0             | 检测  |
+| EAST   |det_mv3_east_v2.0              | 检测  |
+| EAST   |det_r50_vd_east_v2.0           | 检测  |
+| PSENet |det_mv3_pse_v2.0               | 检测  |
+| PSENet |det_r50_vd_pse_v2.0            | 检测  |
+| SAST   |det_r50_vd_sast_totaltext_v2.0 | 检测  |
+| Rosetta|rec_mv3_none_none_ctc_v2.0     | 识别  |
+| Rosetta|rec_r34_vd_none_none_ctc_v2.0  | 识别  |
+| CRNN   |rec_mv3_none_bilstm_ctc_v2.0   | 识别  |
+| CRNN   |rec_r34_vd_none_bilstm_ctc_v2.0| 识别  |
+| StarNet|rec_mv3_tps_bilstm_ctc_v2.0    | 识别  |
+| StarNet|rec_r34_vd_tps_bilstm_ctc_v2.0 | 识别  |
+| RARE   |rec_mv3_tps_bilstm_att_v2.0    | 识别  |
+| RARE   |rec_r34_vd_tps_bilstm_att_v2.0 | 识别  |
+| SRN    |rec_r50fpn_vd_none_srn         | 识别  |
+| NRTR   |rec_mtb_nrtr                   | 识别  |
+| SAR    |rec_r31_sar                    | 识别  |
+| PGNet  |rec_r34_vd_none_none_ctc_v2.0  | 端到端|
+
+
+
+## 3. 一键测试工具使用
+### 目录介绍
+
+```shell
+PTDN/
+├── configs/  # 配置文件目录
+	├── det_mv3_db.yml               # 测试mobile版ppocr检测模型训练的yml文件
+	├── det_r50_vd_db.yml            # 测试server版ppocr检测模型训练的yml文件
+	├── rec_icdar15_r34_train.yml    # 测试server版ppocr识别模型训练的yml文件
+	├── ppocr_sys_mobile_params.txt     # 测试mobile版ppocr检测+识别模型串联的参数配置文件
+	├── ppocr_det_mobile_params.txt     # 测试mobile版ppocr检测模型的参数配置文件
+	├── ppocr_rec_mobile_params.txt     # 测试mobile版ppocr识别模型的参数配置文件
+	├── ppocr_sys_server_params.txt     # 测试server版ppocr检测+识别模型串联的参数配置文件
+	├── ppocr_det_server_params.txt     # 测试server版ppocr检测模型的参数配置文件
+	├── ppocr_rec_server_params.txt     # 测试server版ppocr识别模型的参数配置文件
+	├── ...                                
+├── results/   # 预先保存的预测结果，用于和实际预测结果进行精读比对
+	├── python_ppocr_det_mobile_results_fp32.txt           # 预存的mobile版ppocr检测模型python预测fp32精度的结果
+	├── python_ppocr_det_mobile_results_fp16.txt           # 预存的mobile版ppocr检测模型python预测fp16精度的结果
+	├── cpp_ppocr_det_mobile_results_fp32.txt       # 预存的mobile版ppocr检测模型c++预测的fp32精度的结果
+	├── cpp_ppocr_det_mobile_results_fp16.txt       # 预存的mobile版ppocr检测模型c++预测的fp16精度的结果
+	├── ...
+├── prepare.sh                        # 完成test_*.sh运行所需要的数据和模型下载
+├── test_train_inference_python.sh    # 测试python训练预测的主程序
+├── test_inference_cpp.sh             # 测试c++预测的主程序
+├── test_serving.sh                   # 测试serving部署预测的主程序
+├── test_lite.sh                      # 测试lite部署预测的主程序
+├── compare_results.py                # 用于对比log中的预测结果与results中的预存结果精度误差是否在限定范围内
+└── readme.md                         # 使用文档
+```
+
+### 测试流程
+使用本工具，可以测试不同功能的支持情况，以及预测结果是否对齐，测试流程如下：
+<div align="center">
+    <img src="docs/test.png" width="800">
+</div>
+
+1. 运行prepare.sh准备测试所需数据和模型；
+2. 运行要测试的功能对应的测试脚本`test_*.sh`，产出log，由log可以看到不同配置是否运行成功；
+3. 用`compare_results.py`对比log中的预测结果和预存在results目录下的结果，判断预测精度是否符合预期（在误差范围内）。
+
+其中，有4个测试主程序，功能如下：
+- `test_train_inference_python.sh`：测试基于Python的模型训练、评估、推理等基本功能，包括裁剪、量化、蒸馏。
+- `test_inference_cpp.sh`：测试基于C++的模型推理。
+- `test_serving.sh`：测试基于Paddle Serving的服务化部署功能。
+- `test_lite.sh`：测试基于Paddle-Lite的端侧预测部署功能。
+
+<a name="more"></a>
+#### 更多教程
+各功能测试中涉及混合精度、裁剪、量化等训练相关，及mkldnn、Tensorrt等多种预测相关参数配置，请点击下方相应链接了解更多细节和使用教程：  
+[test_train_inference_python 使用](docs/test_train_inference_python.md)  
+[test_inference_cpp 使用](docs/test_inference_cpp.md)  
+[test_serving 使用](docs/test_serving.md)  
+[test_lite 使用](docs/test_lite.md)  
diff --git a/tests/results/ppocr_det_mobile_results_fp16_cpp.txt b/PTDN/results/cpp_ppocr_det_mobile_results_fp16.txt
similarity index 100%
rename from tests/results/ppocr_det_mobile_results_fp16_cpp.txt
rename to PTDN/results/cpp_ppocr_det_mobile_results_fp16.txt
diff --git a/tests/results/ppocr_det_mobile_results_fp32_cpp.txt b/PTDN/results/cpp_ppocr_det_mobile_results_fp32.txt
similarity index 100%
rename from tests/results/ppocr_det_mobile_results_fp32_cpp.txt
rename to PTDN/results/cpp_ppocr_det_mobile_results_fp32.txt
diff --git a/tests/results/ppocr_det_mobile_results_fp16.txt b/PTDN/results/python_ppocr_det_mobile_results_fp16.txt
similarity index 100%
rename from tests/results/ppocr_det_mobile_results_fp16.txt
rename to PTDN/results/python_ppocr_det_mobile_results_fp16.txt
diff --git a/tests/results/ppocr_det_mobile_results_fp32.txt b/PTDN/results/python_ppocr_det_mobile_results_fp32.txt
similarity index 100%
rename from tests/results/ppocr_det_mobile_results_fp32.txt
rename to PTDN/results/python_ppocr_det_mobile_results_fp32.txt
diff --git a/tests/test_cpp.sh b/PTDN/test_inference_cpp.sh
similarity index 96%
rename from tests/test_cpp.sh
rename to PTDN/test_inference_cpp.sh
index f755858cd0f781d7ef0de8089aefbee86ef83f82..124bdacb7dad04bdea07a62ba9c86b248be5a06d 100644
--- a/tests/test_cpp.sh
+++ b/PTDN/test_inference_cpp.sh
@@ -56,7 +56,11 @@ function func_cpp_inference(){
                 fi
                 for threads in ${cpp_cpu_threads_list[*]}; do
                     for batch_size in ${cpp_batch_size_list[*]}; do
-                        _save_log_path="${_log_path}/cpp_infer_cpu_usemkldnn_${use_mkldnn}_threads_${threads}_batchsize_${batch_size}.log"
+                        precision="fp32"
+                        if [ ${use_mkldnn} = "False" ] && [ ${_flag_quant} = "True" ]; then
+                            precison="int8"
+                        fi
+                        _save_log_path="${_log_path}/cpp_infer_cpu_usemkldnn_${use_mkldnn}_threads_${threads}_precision_${precision}_batchsize_${batch_size}.log"
                         set_infer_data=$(func_set_params "${cpp_image_dir_key}" "${_img_dir}")
                         set_benchmark=$(func_set_params "${cpp_benchmark_key}" "${cpp_benchmark_value}")
                         set_batchsize=$(func_set_params "${cpp_batch_size_key}" "${batch_size}")
diff --git a/tests/test_serving.sh b/PTDN/test_serving.sh
similarity index 65%
rename from tests/test_serving.sh
rename to PTDN/test_serving.sh
index 8998ee7ee4c7f14c1a7df86611b709647c0d1a05..af66d70d7b0a255c33d1114a3951adb92407b8d1 100644
--- a/tests/test_serving.sh
+++ b/PTDN/test_serving.sh
@@ -1,45 +1,45 @@
 #!/bin/bash
-source tests/common_func.sh
+source PTDN/common_func.sh
 
 FILENAME=$1
-dataline=$(awk 'NR==67, NR==81{print}'  $FILENAME)
+dataline=$(awk 'NR==67, NR==83{print}'  $FILENAME)
 
 # parser params
 IFS=$'\n'
 lines=(${dataline})
 
 # parser serving
-trans_model_py=$(func_parser_value "${lines[1]}")
-infer_model_dir_key=$(func_parser_key "${lines[2]}")
-infer_model_dir_value=$(func_parser_value "${lines[2]}")
-model_filename_key=$(func_parser_key "${lines[3]}")
-model_filename_value=$(func_parser_value "${lines[3]}")
-params_filename_key=$(func_parser_key "${lines[4]}")
-params_filename_value=$(func_parser_value "${lines[4]}")
-serving_server_key=$(func_parser_key "${lines[5]}")
-serving_server_value=$(func_parser_value "${lines[5]}")
-serving_client_key=$(func_parser_key "${lines[6]}")
-serving_client_value=$(func_parser_value "${lines[6]}")
-serving_dir_value=$(func_parser_value "${lines[7]}")
-web_service_py=$(func_parser_value "${lines[8]}")
-web_use_gpu_key=$(func_parser_key "${lines[9]}")
-web_use_gpu_list=$(func_parser_value "${lines[9]}")
-web_use_mkldnn_key=$(func_parser_key "${lines[10]}")
-web_use_mkldnn_list=$(func_parser_value "${lines[10]}")
-web_cpu_threads_key=$(func_parser_key "${lines[11]}")
-web_cpu_threads_list=$(func_parser_value "${lines[11]}")
-web_use_trt_key=$(func_parser_key "${lines[12]}")
-web_use_trt_list=$(func_parser_value "${lines[12]}")
-web_precision_key=$(func_parser_key "${lines[13]}")
-web_precision_list=$(func_parser_value "${lines[13]}")
-pipeline_py=$(func_parser_value "${lines[14]}")
+model_name=$(func_parser_value "${lines[1]}")
+python=$(func_parser_value "${lines[2]}")
+trans_model_py=$(func_parser_value "${lines[3]}")
+infer_model_dir_key=$(func_parser_key "${lines[4]}")
+infer_model_dir_value=$(func_parser_value "${lines[4]}")
+model_filename_key=$(func_parser_key "${lines[5]}")
+model_filename_value=$(func_parser_value "${lines[5]}")
+params_filename_key=$(func_parser_key "${lines[6]}")
+params_filename_value=$(func_parser_value "${lines[6]}")
+serving_server_key=$(func_parser_key "${lines[7]}")
+serving_server_value=$(func_parser_value "${lines[7]}")
+serving_client_key=$(func_parser_key "${lines[8]}")
+serving_client_value=$(func_parser_value "${lines[8]}")
+serving_dir_value=$(func_parser_value "${lines[9]}")
+web_service_py=$(func_parser_value "${lines[10]}")
+web_use_gpu_key=$(func_parser_key "${lines[11]}")
+web_use_gpu_list=$(func_parser_value "${lines[11]}")
+web_use_mkldnn_key=$(func_parser_key "${lines[12]}")
+web_use_mkldnn_list=$(func_parser_value "${lines[12]}")
+web_cpu_threads_key=$(func_parser_key "${lines[13]}")
+web_cpu_threads_list=$(func_parser_value "${lines[13]}")
+web_use_trt_key=$(func_parser_key "${lines[14]}")
+web_use_trt_list=$(func_parser_value "${lines[14]}")
+web_precision_key=$(func_parser_key "${lines[15]}")
+web_precision_list=$(func_parser_value "${lines[15]}")
+pipeline_py=$(func_parser_value "${lines[16]}")
 
-
-LOG_PATH="./tests/output"
-mkdir -p ${LOG_PATH}
+LOG_PATH="../../PTDN/output"
+mkdir -p ./PTDN/output
 status_log="${LOG_PATH}/results_serving.log"
 
-
 function func_serving(){
     IFS='|'
     _python=$1
@@ -65,12 +65,12 @@ function func_serving(){
                     continue
                 fi
                 for threads in ${web_cpu_threads_list[*]}; do
-                      _save_log_path="${_log_path}/server_cpu_usemkldnn_${use_mkldnn}_threads_${threads}_batchsize_1.log"
+                      _save_log_path="${LOG_PATH}/server_infer_cpu_usemkldnn_${use_mkldnn}_threads_${threads}_batchsize_1.log"
                       set_cpu_threads=$(func_set_params "${web_cpu_threads_key}" "${threads}")
-                      web_service_cmd="${python} ${web_service_py} ${web_use_gpu_key}=${use_gpu} ${web_use_mkldnn_key}=${use_mkldnn} ${set_cpu_threads} &>${_save_log_path} &"
+                      web_service_cmd="${python} ${web_service_py} ${web_use_gpu_key}=${use_gpu} ${web_use_mkldnn_key}=${use_mkldnn} ${set_cpu_threads} &"
                       eval $web_service_cmd
                       sleep 2s
-                      pipeline_cmd="${python} ${pipeline_py}"
+                      pipeline_cmd="${python} ${pipeline_py} > ${_save_log_path} 2>&1 "
                       eval $pipeline_cmd
                       last_status=${PIPESTATUS[0]}
                       eval "cat ${_save_log_path}"
@@ -93,13 +93,13 @@ function func_serving(){
                     if [[ ${use_trt} = "False" || ${precision} =~ "int8" ]] && [[ ${_flag_quant} = "True" ]]; then
                         continue
                     fi
-                    _save_log_path="${_log_path}/infer_gpu_usetrt_${use_trt}_precision_${precision}_batchsize_1.log"
+                    _save_log_path="${LOG_PATH}/server_infer_gpu_usetrt_${use_trt}_precision_${precision}_batchsize_1.log"
                     set_tensorrt=$(func_set_params "${web_use_trt_key}" "${use_trt}")
                     set_precision=$(func_set_params "${web_precision_key}" "${precision}")
-                    web_service_cmd="${python} ${web_service_py} ${web_use_gpu_key}=${use_gpu} ${set_tensorrt} ${set_precision} &>${_save_log_path} & "
+                    web_service_cmd="${python} ${web_service_py} ${web_use_gpu_key}=${use_gpu} ${set_tensorrt} ${set_precision} & "
                     eval $web_service_cmd
                     sleep 2s
-                    pipeline_cmd="${python} ${pipeline_py}"
+                    pipeline_cmd="${python} ${pipeline_py} > ${_save_log_path} 2>&1"
                     eval $pipeline_cmd
                     last_status=${PIPESTATUS[0]}
                     eval "cat ${_save_log_path}"
@@ -129,3 +129,7 @@ eval $env
 
 
 echo "################### run test ###################"
+
+export Count=0
+IFS="|"
+func_serving "${web_service_cmd}"
diff --git a/tests/test_python.sh b/PTDN/test_train_inference_python.sh
similarity index 83%
rename from tests/test_python.sh
rename to PTDN/test_train_inference_python.sh
index 39b043b809016b245954a835d37789dcc28d7265..756e1f89d74c1df8de50cf8e23fd3d9c95bd20c5 100644
--- a/tests/test_python.sh
+++ b/PTDN/test_train_inference_python.sh
@@ -5,11 +5,7 @@ FILENAME=$1
 # MODE be one of ['lite_train_infer' 'whole_infer' 'whole_train_infer', 'infer', 'klquant_infer']
 MODE=$2
 
-if [ ${MODE} = "klquant_infer" ]; then
-    dataline=$(awk 'NR==82, NR==98{print}'  $FILENAME)
-else
-    dataline=$(awk 'NR==1, NR==51{print}'  $FILENAME)
-fi
+dataline=$(awk 'NR==1, NR==51{print}'  $FILENAME)
 
 # parser params
 IFS=$'\n'
@@ -93,6 +89,8 @@ infer_value1=$(func_parser_value "${lines[50]}")
 
 # parser klquant_infer
 if [ ${MODE} = "klquant_infer" ]; then
+    dataline=$(awk 'NR==82, NR==98{print}'  $FILENAME)
+    lines=(${dataline})
     # parser inference model 
     infer_model_dir_list=$(func_parser_value "${lines[1]}")
     infer_export_list=$(func_parser_value "${lines[2]}")
@@ -143,18 +141,28 @@ function func_inference(){
                 fi
                 for threads in ${cpu_threads_list[*]}; do
                     for batch_size in ${batch_size_list[*]}; do
-                        _save_log_path="${_log_path}/python_infer_cpu_usemkldnn_${use_mkldnn}_threads_${threads}_batchsize_${batch_size}.log"
-                        set_infer_data=$(func_set_params "${image_dir_key}" "${_img_dir}")
-                        set_benchmark=$(func_set_params "${benchmark_key}" "${benchmark_value}")
-                        set_batchsize=$(func_set_params "${batch_size_key}" "${batch_size}")
-                        set_cpu_threads=$(func_set_params "${cpu_threads_key}" "${threads}")
-                        set_model_dir=$(func_set_params "${infer_model_key}" "${_model_dir}")
-                        set_infer_params1=$(func_set_params "${infer_key1}" "${infer_value1}")
-                        command="${_python} ${_script} ${use_gpu_key}=${use_gpu} ${use_mkldnn_key}=${use_mkldnn} ${set_cpu_threads} ${set_model_dir} ${set_batchsize} ${set_infer_data} ${set_benchmark} ${set_infer_params1} > ${_save_log_path} 2>&1 "
-                        eval $command
-                        last_status=${PIPESTATUS[0]}
-                        eval "cat ${_save_log_path}"
-                        status_check $last_status "${command}" "${status_log}"
+                        for precision in ${precision_list[*]}; do
+                            if [ ${use_mkldnn} = "False" ] && [ ${precision} = "fp16" ]; then
+                                continue
+                            fi # skip when enable fp16 but disable mkldnn
+                            if [ ${_flag_quant} = "True" ] && [ ${precision} != "int8" ]; then
+                                continue
+                            fi # skip when quant model inference but precision is not int8
+                            set_precision=$(func_set_params "${precision_key}" "${precision}")
+                            
+                            _save_log_path="${_log_path}/python_infer_cpu_usemkldnn_${use_mkldnn}_threads_${threads}_precision_${precision}_batchsize_${batch_size}.log"
+                            set_infer_data=$(func_set_params "${image_dir_key}" "${_img_dir}")
+                            set_benchmark=$(func_set_params "${benchmark_key}" "${benchmark_value}")
+                            set_batchsize=$(func_set_params "${batch_size_key}" "${batch_size}")
+                            set_cpu_threads=$(func_set_params "${cpu_threads_key}" "${threads}")
+                            set_model_dir=$(func_set_params "${infer_model_key}" "${_model_dir}")
+                            set_infer_params1=$(func_set_params "${infer_key1}" "${infer_value1}")
+                            command="${_python} ${_script} ${use_gpu_key}=${use_gpu} ${use_mkldnn_key}=${use_mkldnn} ${set_cpu_threads} ${set_model_dir} ${set_batchsize} ${set_infer_data} ${set_benchmark} ${set_precision} ${set_infer_params1} > ${_save_log_path} 2>&1 "
+                            eval $command
+                            last_status=${PIPESTATUS[0]}
+                            eval "cat ${_save_log_path}"
+                            status_check $last_status "${command}" "${status_log}"
+                        done
                     done
                 done
             done
@@ -224,6 +232,9 @@ if [ ${MODE} = "infer" ] || [ ${MODE} = "klquant_infer" ]; then
         fi
         #run inference
         is_quant=${infer_quant_flag[Count]}
+        if [ ${MODE} = "klquant_infer" ]; then
+            is_quant="True"
+        fi
         func_inference "${python}" "${inference_py}" "${save_infer_dir}" "${LOG_PATH}" "${infer_img_dir}" ${is_quant}
         Count=$(($Count + 1))
     done
@@ -234,6 +245,7 @@ else
     for gpu in ${gpu_list[*]}; do
         use_gpu=${USE_GPU_KEY[Count]}
         Count=$(($Count + 1))
+        ips=""
         if [ ${gpu} = "-1" ];then
             env=""
         elif [ ${#gpu} -le 1 ];then
@@ -253,6 +265,11 @@ else
             env=" "
         fi
         for autocast in ${autocast_list[*]}; do 
+            if [ ${autocast} = "amp" ]; then
+                set_amp_config="Global.use_amp=True Global.scale_loss=1024.0 Global.use_dynamic_loss_scaling=True"
+            else
+                set_amp_config=" "
+            fi          
             for trainer in ${trainer_list[*]}; do 
                 flag_quant=False
                 if [ ${trainer} = ${pact_key} ]; then
@@ -279,7 +296,6 @@ else
                 if [ ${run_train} = "null" ]; then
                     continue
                 fi
-                
                 set_autocast=$(func_set_params "${autocast_key}" "${autocast}")
                 set_epoch=$(func_set_params "${epoch_key}" "${epoch_num}")
                 set_pretrain=$(func_set_params "${pretrain_model_key}" "${pretrain_model_value}")
@@ -295,11 +311,11 @@ else
 
                 set_save_model=$(func_set_params "${save_model_key}" "${save_log}")
                 if [ ${#gpu} -le 2 ];then  # train with cpu or single gpu
-                    cmd="${python} ${run_train} ${set_use_gpu}  ${set_save_model} ${set_epoch} ${set_pretrain} ${set_autocast} ${set_batchsize} ${set_train_params1} "
-                elif [ ${#gpu} -le 15 ];then  # train with multi-gpu
-                    cmd="${python} -m paddle.distributed.launch --gpus=${gpu} ${run_train} ${set_save_model} ${set_epoch} ${set_pretrain} ${set_autocast} ${set_batchsize} ${set_train_params1}"
+                    cmd="${python} ${run_train} ${set_use_gpu}  ${set_save_model} ${set_epoch} ${set_pretrain} ${set_autocast} ${set_batchsize} ${set_train_params1} ${set_amp_config} "
+                elif [ ${#ips} -le 26 ];then  # train with multi-gpu
+                    cmd="${python} -m paddle.distributed.launch --gpus=${gpu} ${run_train} ${set_use_gpu} ${set_save_model} ${set_epoch} ${set_pretrain} ${set_autocast} ${set_batchsize} ${set_train_params1} ${set_amp_config}"
                 else     # train with multi-machine
-                    cmd="${python} -m paddle.distributed.launch --ips=${ips} --gpus=${gpu} ${run_train} ${set_save_model} ${set_pretrain} ${set_epoch} ${set_autocast} ${set_batchsize} ${set_train_params1}"
+                    cmd="${python} -m paddle.distributed.launch --ips=${ips} --gpus=${gpu} ${set_use_gpu} ${run_train} ${set_save_model} ${set_pretrain} ${set_epoch} ${set_autocast} ${set_batchsize} ${set_train_params1} ${set_amp_config}"
                 fi
                 # run train
                 eval "unset CUDA_VISIBLE_DEVICES"
diff --git a/configs/rec/ch_PP-OCRv2/ch_PP-OCRv2_rec.yml b/configs/rec/ch_PP-OCRv2/ch_PP-OCRv2_rec.yml
index 38f77f7372c4e422b5601deb5119c24fd1e3f787..e2aa50106ff60aa61858a22ba6fdd03b8cd04d85 100644
--- a/configs/rec/ch_PP-OCRv2/ch_PP-OCRv2_rec.yml
+++ b/configs/rec/ch_PP-OCRv2/ch_PP-OCRv2_rec.yml
@@ -14,7 +14,6 @@ Global:
   use_visualdl: false
   infer_img: doc/imgs_words/ch/word_1.jpg
   character_dict_path: ppocr/utils/ppocr_keys_v1.txt
-  character_type: ch
   max_text_length: 25
   infer_mode: false
   use_space_char: true
diff --git a/configs/rec/ch_PP-OCRv2/ch_PP-OCRv2_rec_distillation.yml b/configs/rec/ch_PP-OCRv2/ch_PP-OCRv2_rec_distillation.yml
index d2308fd5747f3fadf3bb1c98c5602c67d5e63eca..ab48b99791d00785d143cd933ccc31b3f69d0f8f 100644
--- a/configs/rec/ch_PP-OCRv2/ch_PP-OCRv2_rec_distillation.yml
+++ b/configs/rec/ch_PP-OCRv2/ch_PP-OCRv2_rec_distillation.yml
@@ -14,7 +14,6 @@ Global:
   use_visualdl: false
   infer_img: doc/imgs_words/ch/word_1.jpg
   character_dict_path: ppocr/utils/ppocr_keys_v1.txt
-  character_type: ch
   max_text_length: 25
   infer_mode: false
   use_space_char: true
diff --git a/configs/rec/ch_PP-OCRv2/ch_PP-OCRv2_rec_enhanced_ctc_loss.yml b/configs/rec/ch_PP-OCRv2/ch_PP-OCRv2_rec_enhanced_ctc_loss.yml
index 8b568637a189ac47438b84e89fc55ddc643ab297..7161203035b2324c7afc56b2b0c743428558a098 100644
--- a/configs/rec/ch_PP-OCRv2/ch_PP-OCRv2_rec_enhanced_ctc_loss.yml
+++ b/configs/rec/ch_PP-OCRv2/ch_PP-OCRv2_rec_enhanced_ctc_loss.yml
@@ -14,7 +14,6 @@ Global:
   use_visualdl: false
   infer_img: doc/imgs_words/ch/word_1.jpg
   character_dict_path: ppocr/utils/ppocr_keys_v1.txt
-  character_type: ch
   max_text_length: 25
   infer_mode: false
   use_space_char: true
diff --git a/configs/rec/ch_ppocr_v2.0/rec_chinese_common_train_v2.0.yml b/configs/rec/ch_ppocr_v2.0/rec_chinese_common_train_v2.0.yml
index 717c16814bac2f6fca78aa63566df12bd8cbf67b..c76063d5cedc31985404ddfff5147e1e0c100d20 100644
--- a/configs/rec/ch_ppocr_v2.0/rec_chinese_common_train_v2.0.yml
+++ b/configs/rec/ch_ppocr_v2.0/rec_chinese_common_train_v2.0.yml
@@ -15,7 +15,6 @@ Global:
   infer_img: doc/imgs_words/ch/word_1.jpg
   # for data or label process
   character_dict_path: ppocr/utils/ppocr_keys_v1.txt
-  character_type: ch
   max_text_length: 25
   infer_mode: False
   use_space_char: True
diff --git a/configs/rec/ch_ppocr_v2.0/rec_chinese_lite_train_v2.0.yml b/configs/rec/ch_ppocr_v2.0/rec_chinese_lite_train_v2.0.yml
index 660465f301047110db7001db7a32e687f2917b61..563ce110b865adabf320616227bdf8d2eb465c11 100644
--- a/configs/rec/ch_ppocr_v2.0/rec_chinese_lite_train_v2.0.yml
+++ b/configs/rec/ch_ppocr_v2.0/rec_chinese_lite_train_v2.0.yml
@@ -15,7 +15,6 @@ Global:
   infer_img: doc/imgs_words/ch/word_1.jpg
   # for data or label process
   character_dict_path: ppocr/utils/ppocr_keys_v1.txt
-  character_type: ch
   max_text_length: 25
   infer_mode: False
   use_space_char: True
diff --git a/configs/rec/multi_language/rec_arabic_lite_train.yml b/configs/rec/multi_language/rec_arabic_lite_train.yml
index 6dcfd1b69988b09c7dfc05cdbacce9756ea1f7cb..a746260e0001e34b1f50fb066885091b3686cb4d 100644
--- a/configs/rec/multi_language/rec_arabic_lite_train.yml
+++ b/configs/rec/multi_language/rec_arabic_lite_train.yml
@@ -15,7 +15,6 @@ Global:
   use_visualdl: false
   infer_img: null
   character_dict_path: ppocr/utils/dict/arabic_dict.txt
-  character_type: arabic
   max_text_length: 25
   infer_mode: false
   use_space_char: true
diff --git a/configs/rec/multi_language/rec_cyrillic_lite_train.yml b/configs/rec/multi_language/rec_cyrillic_lite_train.yml
index 52527c1dfb9a306429bbab9241c623581d546e45..98544f627111340b61abd210ea5b4d7979511a15 100644
--- a/configs/rec/multi_language/rec_cyrillic_lite_train.yml
+++ b/configs/rec/multi_language/rec_cyrillic_lite_train.yml
@@ -15,7 +15,6 @@ Global:
   use_visualdl: false
   infer_img: null
   character_dict_path: ppocr/utils/dict/cyrillic_dict.txt
-  character_type: cyrillic
   max_text_length: 25
   infer_mode: false
   use_space_char: true
diff --git a/configs/rec/multi_language/rec_devanagari_lite_train.yml b/configs/rec/multi_language/rec_devanagari_lite_train.yml
index e1a7c829c3e6d3c3a57f1d501cdd80a560703ec7..518b9f19ccaccb6405f7e9cb4d783b441e8c7ae7 100644
--- a/configs/rec/multi_language/rec_devanagari_lite_train.yml
+++ b/configs/rec/multi_language/rec_devanagari_lite_train.yml
@@ -15,7 +15,6 @@ Global:
   use_visualdl: false
   infer_img: null
   character_dict_path: ppocr/utils/dict/devanagari_dict.txt
-  character_type: devanagari
   max_text_length: 25
   infer_mode: false
   use_space_char: true
diff --git a/configs/rec/multi_language/rec_en_number_lite_train.yml b/configs/rec/multi_language/rec_en_number_lite_train.yml
index fff4dfcd905b406964bb07cf14017af22f40e91e..ff1fb8698163d00fae57e682059da47d2007505d 100644
--- a/configs/rec/multi_language/rec_en_number_lite_train.yml
+++ b/configs/rec/multi_language/rec_en_number_lite_train.yml
@@ -16,7 +16,6 @@ Global:
   infer_img:
   # for data or label process
   character_dict_path: ppocr/utils/en_dict.txt
-  character_type: EN
   max_text_length: 25
   infer_mode: False
   use_space_char: True
diff --git a/configs/rec/multi_language/rec_french_lite_train.yml b/configs/rec/multi_language/rec_french_lite_train.yml
index 63378d38a0d31fc77c33173e0ed864f28c5c3a8b..217369d30bc3ac6e09c2a580facbd0395e0ce727 100644
--- a/configs/rec/multi_language/rec_french_lite_train.yml
+++ b/configs/rec/multi_language/rec_french_lite_train.yml
@@ -16,7 +16,6 @@ Global:
   infer_img:
   # for data or label process
   character_dict_path: ppocr/utils/dict/french_dict.txt
-  character_type: french
   max_text_length: 25
   infer_mode: False
   use_space_char: False
diff --git a/configs/rec/multi_language/rec_german_lite_train.yml b/configs/rec/multi_language/rec_german_lite_train.yml
index 1651510c5e4597e82298135d2f6c64aa747cf961..67520f5fb668327fdbd0cddb68cb6a3d6d3d112e 100644
--- a/configs/rec/multi_language/rec_german_lite_train.yml
+++ b/configs/rec/multi_language/rec_german_lite_train.yml
@@ -16,7 +16,6 @@ Global:
   infer_img:
   # for data or label process
   character_dict_path: ppocr/utils/dict/german_dict.txt
-  character_type: german
   max_text_length: 25
   infer_mode: False
   use_space_char: False
diff --git a/configs/rec/multi_language/rec_japan_lite_train.yml b/configs/rec/multi_language/rec_japan_lite_train.yml
index bb47584edbc70f68d8d2d89dced3ec9b12f0e1cb..448aff1ebd0b418191c622cee97346931a86929b 100644
--- a/configs/rec/multi_language/rec_japan_lite_train.yml
+++ b/configs/rec/multi_language/rec_japan_lite_train.yml
@@ -16,7 +16,6 @@ Global:
   infer_img:
   # for data or label process
   character_dict_path: ppocr/utils/dict/japan_dict.txt
-  character_type: japan
   max_text_length: 25
   infer_mode: False
   use_space_char: False
diff --git a/configs/rec/multi_language/rec_korean_lite_train.yml b/configs/rec/multi_language/rec_korean_lite_train.yml
index 77f15524f78cd7f1c3dcf4988960e718422f5d89..8118119da8f15102ad4c8485b7e26b9436d65cda 100644
--- a/configs/rec/multi_language/rec_korean_lite_train.yml
+++ b/configs/rec/multi_language/rec_korean_lite_train.yml
@@ -16,7 +16,6 @@ Global:
   infer_img:
   # for data or label process
   character_dict_path: ppocr/utils/dict/korean_dict.txt
-  character_type: korean
   max_text_length: 25
   infer_mode: False
   use_space_char: False
diff --git a/configs/rec/multi_language/rec_latin_lite_train.yml b/configs/rec/multi_language/rec_latin_lite_train.yml
index e71112b4b4f0afd3ceab9f10078bc5d518ee9e59..04fe6d1a49ea06341b2218123d2319a5962b934b 100644
--- a/configs/rec/multi_language/rec_latin_lite_train.yml
+++ b/configs/rec/multi_language/rec_latin_lite_train.yml
@@ -15,7 +15,6 @@ Global:
   use_visualdl: false
   infer_img: null
   character_dict_path: ppocr/utils/dict/latin_dict.txt
-  character_type: latin
   max_text_length: 25
   infer_mode: false
   use_space_char: true
diff --git a/configs/rec/rec_icdar15_train.yml b/configs/rec/rec_icdar15_train.yml
index 17a4d76483635d648ebb8cb897f621a186dcd516..893f7382f8b82f3c2d5f10cdf10735645fd3a5ee 100644
--- a/configs/rec/rec_icdar15_train.yml
+++ b/configs/rec/rec_icdar15_train.yml
@@ -15,7 +15,6 @@ Global:
   infer_img: doc/imgs_words_en/word_10.png
   # for data or label process
   character_dict_path: ppocr/utils/en_dict.txt
-  character_type: EN
   max_text_length: 25
   infer_mode: False
   use_space_char: False
diff --git a/configs/rec/rec_mtb_nrtr.yml b/configs/rec/rec_mtb_nrtr.yml
index 8639a28a931247ee34f2e3842407fd1d2e065950..04267500854310dc6d5df9318bb8c056c65cd5b5 100644
--- a/configs/rec/rec_mtb_nrtr.yml
+++ b/configs/rec/rec_mtb_nrtr.yml
@@ -14,11 +14,10 @@ Global:
   use_visualdl: False
   infer_img: doc/imgs_words_en/word_10.png
   # for data or label process
-  character_dict_path: 
-  character_type: EN_symbol
+  character_dict_path: ppocr/utils/EN_symbol_dict.txt
   max_text_length: 25
   infer_mode: False
-  use_space_char: True
+  use_space_char: False
   save_res_path: ./output/rec/predicts_nrtr.txt
 
 Optimizer:
diff --git a/configs/rec/rec_mv3_none_bilstm_ctc.yml b/configs/rec/rec_mv3_none_bilstm_ctc.yml
index 9e0bd23edba053b44fc7241c0a587ced5cd1ac76..9a950923b0cd4292f3f4d70ae51abc60c59dc615 100644
--- a/configs/rec/rec_mv3_none_bilstm_ctc.yml
+++ b/configs/rec/rec_mv3_none_bilstm_ctc.yml
@@ -14,8 +14,7 @@ Global:
   use_visualdl: False
   infer_img: doc/imgs_words_en/word_10.png
   # for data or label process
-  character_dict_path: 
-  character_type: en
+  character_dict_path:
   max_text_length: 25
   infer_mode: False
   use_space_char: False
diff --git a/configs/rec/rec_mv3_none_none_ctc.yml b/configs/rec/rec_mv3_none_none_ctc.yml
index 904afe1134b565d6459cdcda4cbfa43ae4925b92..28f0252adb4b74f88f8c6203521adb66c851e6b0 100644
--- a/configs/rec/rec_mv3_none_none_ctc.yml
+++ b/configs/rec/rec_mv3_none_none_ctc.yml
@@ -15,7 +15,6 @@ Global:
   infer_img: doc/imgs_words_en/word_10.png
   # for data or label process
   character_dict_path:
-  character_type: en
   max_text_length: 25
   infer_mode: False
   use_space_char: False
diff --git a/configs/rec/rec_mv3_tps_bilstm_att.yml b/configs/rec/rec_mv3_tps_bilstm_att.yml
index feaeb0545c687774938521e4c45c026207172f11..6c347e765fe04ca3e5330de6cabb9998855436c9 100644
--- a/configs/rec/rec_mv3_tps_bilstm_att.yml
+++ b/configs/rec/rec_mv3_tps_bilstm_att.yml
@@ -14,8 +14,7 @@ Global:
   use_visualdl: False
   infer_img: doc/imgs_words/ch/word_1.jpg
   # for data or label process
-  character_dict_path: 
-  character_type: en
+  character_dict_path:
   max_text_length: 25
   infer_mode: False
   use_space_char: False
diff --git a/configs/rec/rec_mv3_tps_bilstm_ctc.yml b/configs/rec/rec_mv3_tps_bilstm_ctc.yml
index 65ab23c42aff54ee548867e3482d7400603551ad..9d1ebbe4e2ce25d746ff9d6993bf820347a3558a 100644
--- a/configs/rec/rec_mv3_tps_bilstm_ctc.yml
+++ b/configs/rec/rec_mv3_tps_bilstm_ctc.yml
@@ -15,7 +15,6 @@ Global:
   infer_img: doc/imgs_words_en/word_10.png
   # for data or label process
   character_dict_path:
-  character_type: en
   max_text_length: 25
   infer_mode: False
   use_space_char: False
diff --git a/configs/rec/rec_r31_sar.yml b/configs/rec/rec_r31_sar.yml
index 41609fdf28e78f5340ab08878c2b8b23f46020d2..65e7877b28da80e0730f551b07d60b8a8c0ac48e 100644
--- a/configs/rec/rec_r31_sar.yml
+++ b/configs/rec/rec_r31_sar.yml
@@ -15,7 +15,6 @@ Global:
   infer_img: 
   # for data or label process
   character_dict_path: ppocr/utils/dict90.txt
-  character_type: EN_symbol
   max_text_length: 30
   infer_mode: False
   use_space_char: False
diff --git a/configs/rec/rec_r34_vd_none_bilstm_ctc.yml b/configs/rec/rec_r34_vd_none_bilstm_ctc.yml
index 331bb36ed84b83dc62a0f9b15524457238dedc13..9fdb5e99acec4ab5b2c3ff4b29158a41c766844b 100644
--- a/configs/rec/rec_r34_vd_none_bilstm_ctc.yml
+++ b/configs/rec/rec_r34_vd_none_bilstm_ctc.yml
@@ -14,8 +14,7 @@ Global:
   use_visualdl: False
   infer_img: doc/imgs_words_en/word_10.png
   # for data or label process
-  character_dict_path: 
-  character_type: en
+  character_dict_path:
   max_text_length: 25
   infer_mode: False
   use_space_char: False
diff --git a/configs/rec/rec_r34_vd_none_none_ctc.yml b/configs/rec/rec_r34_vd_none_none_ctc.yml
index 695a46958f669e4cb9508646080b45ac0767b8c9..0af2b2ff21938ce9b1750bd0fd8e27dabfd39998 100644
--- a/configs/rec/rec_r34_vd_none_none_ctc.yml
+++ b/configs/rec/rec_r34_vd_none_none_ctc.yml
@@ -15,7 +15,6 @@ Global:
   infer_img: doc/imgs_words_en/word_10.png
   # for data or label process
   character_dict_path:
-  character_type: en
   max_text_length: 25
   infer_mode: False
   use_space_char: False
diff --git a/configs/rec/rec_r34_vd_tps_bilstm_att.yml b/configs/rec/rec_r34_vd_tps_bilstm_att.yml
index fdd3588c844ffd7ed61de73077ae2994f0ad498d..8919aae75720d1e2f786957dd44e2d5d6dcbb5af 100644
--- a/configs/rec/rec_r34_vd_tps_bilstm_att.yml
+++ b/configs/rec/rec_r34_vd_tps_bilstm_att.yml
@@ -14,8 +14,7 @@ Global:
   use_visualdl: False
   infer_img: doc/imgs_words/ch/word_1.jpg
   # for data or label process
-  character_dict_path: 
-  character_type: en
+  character_dict_path:
   max_text_length: 25
   infer_mode: False
   use_space_char: False
diff --git a/configs/rec/rec_r34_vd_tps_bilstm_ctc.yml b/configs/rec/rec_r34_vd_tps_bilstm_ctc.yml
index 67108a6eaca2dd6f239261f5184341e5ade00dc0..c21fe61fbe62bab940bdb5ec1fef7833f402cb6c 100644
--- a/configs/rec/rec_r34_vd_tps_bilstm_ctc.yml
+++ b/configs/rec/rec_r34_vd_tps_bilstm_ctc.yml
@@ -14,8 +14,7 @@ Global:
   use_visualdl: False
   infer_img: doc/imgs_words_en/word_10.png
   # for data or label process
-  character_dict_path: 
-  character_type: en
+  character_dict_path:
   max_text_length: 25
   infer_mode: False
   use_space_char: False
diff --git a/configs/rec/rec_r50_fpn_srn.yml b/configs/rec/rec_r50_fpn_srn.yml
index fa7b1ae4e5fed41d3aa3670d6672cca01b63c359..b685362dedbcd6022fa247fe1499017647fa1546 100644
--- a/configs/rec/rec_r50_fpn_srn.yml
+++ b/configs/rec/rec_r50_fpn_srn.yml
@@ -14,8 +14,7 @@ Global:
   use_visualdl: False
   infer_img: doc/imgs_words/ch/word_1.jpg
   # for data or label process
-  character_dict_path: 
-  character_type: en
+  character_dict_path:
   max_text_length: 25
   num_heads: 8
   infer_mode: False
diff --git a/configs/rec/rec_resnet_stn_bilstm_att.yml b/configs/rec/rec_resnet_stn_bilstm_att.yml
index 1f6e534a6878a7ae84fc7fa7e1d975077f164d80..0f599258d46e2ce89a6b7deccf8287a2ec0f7e4e 100644
--- a/configs/rec/rec_resnet_stn_bilstm_att.yml
+++ b/configs/rec/rec_resnet_stn_bilstm_att.yml
@@ -14,8 +14,7 @@ Global:
   use_visualdl: False
   infer_img: doc/imgs_words_en/word_10.png
   # for data or label process
-  character_dict_path: 
-  character_type: EN_symbol
+  character_dict_path: ppocr/utils/EN_symbol_dict.txt
   max_text_length: 100
   infer_mode: False
   use_space_char: False
diff --git a/doc/doc_ch/config.md b/doc/doc_ch/config.md
index 600d5bdb120444ec89222360af02adb3f96a8640..dcd0318ed908375c896d7a6730cd72db4cc4b848 100644
--- a/doc/doc_ch/config.md
+++ b/doc/doc_ch/config.md
@@ -37,10 +37,9 @@
 |      checkpoints         |    加载模型参数路径            |       None        |    用于中断后加载参数继续训练 |
 |      use_visualdl  |    设置是否启用visualdl进行可视化log展示 |          False        |    [教程地址](https://www.paddlepaddle.org.cn/paddle/visualdl) |
 |      infer_img            |    设置预测图像路径或文件夹路径     |       ./infer_img | \|
-|      character_dict_path |    设置字典路径            |  ./ppocr/utils/ppocr_keys_v1.txt  |    \                 |
+|      character_dict_path |    设置字典路径            |  ./ppocr/utils/ppocr_keys_v1.txt  |    如果为空，则默认使用小写字母+数字作为字典                 |
 |      max_text_length     |    设置文本最大长度        |       25          |                \                 |
-|      character_type      |    设置字符类型            |       ch          |    en/ch, en时将使用默认dict，ch时使用自定义dict|
-|      use_space_char     |    设置是否识别空格             |        True      |          仅在 character_type=ch 时支持空格                 |
+|      use_space_char     |    设置是否识别空格             |        True      |                           |
 |      label_list          |    设置方向分类器支持的角度       |    ['0','180']    |     仅在方向分类器中生效 |
 |      save_res_path          |    设置检测模型的结果保存地址       |    ./output/det_db/predicts_db.txt    |     仅在检测模型中生效 |
 
@@ -177,7 +176,7 @@ PaddleOCR目前已支持80种（除中文外）语种识别，`configs/rec/multi
     --dict {path/of/dict} \             # 字典文件路径
     -o Global.use_gpu=False             # 是否使用gpu
     ...
-    
+
     ```
 
 意大利文由拉丁字母组成，因此执行完命令后会得到名为 rec_latin_lite_train.yml 的配置文件。
@@ -191,38 +190,37 @@ PaddleOCR目前已支持80种（除中文外）语种识别，`configs/rec/multi
       use_gpu: True
       epoch_num: 500
       ...
-      character_type: it  # 需要识别的语种
       character_dict_path:  {path/of/dict} # 字典文件所在路径
-   
+
    Train:
       dataset:
         name: SimpleDataSet
         data_dir: train_data/ # 数据存放根目录
         label_file_list: ["./train_data/train_list.txt"] # 训练集label路径
       ...
-   
+
    Eval:
       dataset:
         name: SimpleDataSet
         data_dir: train_data/ # 数据存放根目录
         label_file_list: ["./train_data/val_list.txt"] # 验证集label路径
       ...
-   
+
    ```
 
 目前PaddleOCR支持的多语言算法有：
 
-| 配置文件 |  算法名称 |   backbone |   trans   |   seq      |     pred     |  language | character_type |
-| :--------: |  :-------:   | :-------:  |   :-------:   |   :-----:   |  :-----:   | :-----:  | :-----:  |
-| rec_chinese_cht_lite_train.yml |  CRNN |   Mobilenet_v3 small 0.5 |  None   |  BiLSTM |  ctc  | 中文繁体  | chinese_cht|
-| rec_en_lite_train.yml |  CRNN |   Mobilenet_v3 small 0.5 |  None   |  BiLSTM |  ctc  | 英语（区分大小写）   | EN |
-| rec_french_lite_train.yml |  CRNN |   Mobilenet_v3 small 0.5 |  None   |  BiLSTM |  ctc  | 法语 |  french |
-| rec_ger_lite_train.yml |  CRNN |   Mobilenet_v3 small 0.5 |  None   |  BiLSTM |  ctc  | 德语   | german |
-| rec_japan_lite_train.yml |  CRNN |   Mobilenet_v3 small 0.5 |  None   |  BiLSTM |  ctc  | 日语  | japan |
-| rec_korean_lite_train.yml |  CRNN |   Mobilenet_v3 small 0.5 |  None   |  BiLSTM |  ctc  | 韩语  | korean |
-| rec_latin_lite_train.yml |  CRNN |   Mobilenet_v3 small 0.5 |  None   |  BiLSTM |  ctc  | 拉丁字母  | latin |
-| rec_arabic_lite_train.yml |  CRNN |   Mobilenet_v3 small 0.5 |  None   |  BiLSTM |  ctc  | 阿拉伯字母 |  ar |
-| rec_cyrillic_lite_train.yml |  CRNN |   Mobilenet_v3 small 0.5 |  None   |  BiLSTM |  ctc  | 斯拉夫字母  | cyrillic |
-| rec_devanagari_lite_train.yml |  CRNN |   Mobilenet_v3 small 0.5 |  None   |  BiLSTM |  ctc  | 梵文字母  | devanagari |
+| 配置文件 |  算法名称 |   backbone |   trans   |   seq      |     pred     |  language |
+| :--------: |  :-------:   | :-------:  |   :-------:   |   :-----:   |  :-----:   | :-----:  |
+| rec_chinese_cht_lite_train.yml |  CRNN |   Mobilenet_v3 small 0.5 |  None   |  BiLSTM |  ctc  | 中文繁体  |
+| rec_en_lite_train.yml |  CRNN |   Mobilenet_v3 small 0.5 |  None   |  BiLSTM |  ctc  | 英语（区分大小写）   |
+| rec_french_lite_train.yml |  CRNN |   Mobilenet_v3 small 0.5 |  None   |  BiLSTM |  ctc  | 法语 |  
+| rec_ger_lite_train.yml |  CRNN |   Mobilenet_v3 small 0.5 |  None   |  BiLSTM |  ctc  | 德语   |
+| rec_japan_lite_train.yml |  CRNN |   Mobilenet_v3 small 0.5 |  None   |  BiLSTM |  ctc  | 日语  |
+| rec_korean_lite_train.yml |  CRNN |   Mobilenet_v3 small 0.5 |  None   |  BiLSTM |  ctc  | 韩语  |
+| rec_latin_lite_train.yml |  CRNN |   Mobilenet_v3 small 0.5 |  None   |  BiLSTM |  ctc  | 拉丁字母  |
+| rec_arabic_lite_train.yml |  CRNN |   Mobilenet_v3 small 0.5 |  None   |  BiLSTM |  ctc  | 阿拉伯字母 |  
+| rec_cyrillic_lite_train.yml |  CRNN |   Mobilenet_v3 small 0.5 |  None   |  BiLSTM |  ctc  | 斯拉夫字母  |
+| rec_devanagari_lite_train.yml |  CRNN |   Mobilenet_v3 small 0.5 |  None   |  BiLSTM |  ctc  | 梵文字母  |
 
 更多支持语种请参考: [多语言模型](https://github.com/PaddlePaddle/PaddleOCR/blob/release/2.1/doc/doc_ch/multi_languages.md#%E8%AF%AD%E7%A7%8D%E7%BC%A9%E5%86%99)
diff --git a/doc/doc_ch/inference.md b/doc/doc_ch/inference.md
index b9be1e4cb2d1b256a05b82ef5d6db49dfcb2f31f..4e0f1d131e2547f0d4a8bdf35c0f4a6f8bf2e7a3 100755
--- a/doc/doc_ch/inference.md
+++ b/doc/doc_ch/inference.md
@@ -273,7 +273,7 @@ python3 tools/export_model.py -c configs/rec/rec_r34_vd_none_bilstm_ctc.yml -o G
 CRNN 文本识别模型推理，可以执行如下命令：
 
 ```
-python3 tools/infer/predict_rec.py --image_dir="./doc/imgs_words_en/word_336.png" --rec_model_dir="./inference/rec_crnn/" --rec_image_shape="3, 32, 100" --rec_char_type="en"
+python3 tools/infer/predict_rec.py --image_dir="./doc/imgs_words_en/word_336.png" --rec_model_dir="./inference/rec_crnn/" --rec_image_shape="3, 32, 100" --rec_char_dict_path="./ppocr/utils/ic15_dict.txt"
 ```
 
 ![](../imgs_words_en/word_336.png)
@@ -288,7 +288,7 @@ Predicts of ./doc/imgs_words_en/word_336.png:('super', 0.9999073)
 
 - 训练时采用的图像分辨率不同，训练上述模型采用的图像分辨率是[3，32，100]，而中文模型训练时，为了保证长文本的识别效果，训练时采用的图像分辨率是[3, 32, 320]。预测推理程序默认的的形状参数是训练中文采用的图像分辨率，即[3, 32, 320]。因此，这里推理上述英文模型时，需要通过参数rec_image_shape设置识别图像的形状。
 
-- 字符列表，DTRB论文中实验只是针对26个小写英文本母和10个数字进行实验，总共36个字符。所有大小字符都转成了小写字符，不在上面列表的字符都忽略，认为是空格。因此这里没有输入字符字典，而是通过如下命令生成字典.因此在推理时需要设置参数rec_char_type，指定为英文"en"。
+- 字符列表，DTRB论文中实验只是针对26个小写英文本母和10个数字进行实验，总共36个字符。所有大小字符都转成了小写字符，不在上面列表的字符都忽略，认为是空格。因此这里没有输入字符字典，而是通过如下命令生成字典.因此在推理时需要设置参数rec_char_dict_path，指定为英文字典"./ppocr/utils/ic15_dict.txt"。
 
 ```
 self.character_str = "0123456789abcdefghijklmnopqrstuvwxyz"
@@ -303,15 +303,15 @@ dict_character = list(self.character_str)
 python3 tools/infer/predict_rec.py --image_dir="./doc/imgs_words_en/word_336.png" \
                                    --rec_model_dir="./inference/srn/" \
                                    --rec_image_shape="1, 64, 256" \
-                                   --rec_char_type="en" \
+                                   --rec_char_dict_path="./ppocr/utils/ic15_dict.txt" \
                                    --rec_algorithm="SRN"
 ```
 
 ### 4. 自定义文本识别字典的推理
-如果训练时修改了文本的字典，在使用inference模型预测时，需要通过`--rec_char_dict_path`指定使用的字典路径，并且设置 `rec_char_type=ch`
+如果训练时修改了文本的字典，在使用inference模型预测时，需要通过`--rec_char_dict_path`指定使用的字典路径
 
 ```
-python3 tools/infer/predict_rec.py --image_dir="./doc/imgs_words_en/word_336.png" --rec_model_dir="./your inference model" --rec_image_shape="3, 32, 100" --rec_char_type="ch" --rec_char_dict_path="your text dict path"
+python3 tools/infer/predict_rec.py --image_dir="./doc/imgs_words_en/word_336.png" --rec_model_dir="./your inference model" --rec_image_shape="3, 32, 100"  --rec_char_dict_path="your text dict path"
 ```
 
 <a name="多语言模型的推理"></a>
@@ -320,7 +320,7 @@ python3 tools/infer/predict_rec.py --image_dir="./doc/imgs_words_en/word_336.png
 需要通过 `--vis_font_path` 指定可视化的字体路径，`doc/fonts/` 路径下有默认提供的小语种字体，例如韩文识别：
 
 ```
-python3 tools/infer/predict_rec.py --image_dir="./doc/imgs_words/korean/1.jpg" --rec_model_dir="./your inference model" --rec_char_type="korean" --rec_char_dict_path="ppocr/utils/dict/korean_dict.txt" --vis_font_path="doc/fonts/korean.ttf"
+python3 tools/infer/predict_rec.py --image_dir="./doc/imgs_words/korean/1.jpg" --rec_model_dir="./your inference model"  --rec_char_dict_path="ppocr/utils/dict/korean_dict.txt" --vis_font_path="doc/fonts/korean.ttf"
 ```
 ![](../imgs_words/korean/1.jpg)
 
@@ -388,7 +388,7 @@ python3 tools/infer/predict_system.py --image_dir="./doc/imgs/00018069.jpg" --de
 下面给出基于EAST文本检测和STAR-Net文本识别执行命令：
 
 ```
-python3 tools/infer/predict_system.py --image_dir="./doc/imgs_en/img_10.jpg" --det_model_dir="./inference/det_east/" --det_algorithm="EAST" --rec_model_dir="./inference/starnet/" --rec_image_shape="3, 32, 100" --rec_char_type="en"
+python3 tools/infer/predict_system.py --image_dir="./doc/imgs_en/img_10.jpg" --det_model_dir="./inference/det_east/" --det_algorithm="EAST" --rec_model_dir="./inference/starnet/" --rec_image_shape="3, 32, 100" --rec_char_dict_path="./ppocr/utils/ic15_dict.txt"
 ```
 
 执行命令后，识别结果图像如下：
diff --git a/doc/doc_ch/recognition.md b/doc/doc_ch/recognition.md
index 52f978a734cbc750f4e2f36bb3ff28b2e67ab612..bb7d01712a85c92a02109e41814059e6c98c7cdc 100644
--- a/doc/doc_ch/recognition.md
+++ b/doc/doc_ch/recognition.md
@@ -159,7 +159,6 @@ PaddleOCR内置了一部分字典，可以按需使用。
 - 自定义字典
 
 如需自定义dic文件，请在 `configs/rec/rec_icdar15_train.yml` 中添加 `character_dict_path` 字段, 指向您的字典路径。
-并将 `character_type` 设置为 `ch`。
 
 <a name="支持空格"></a>
 ### 1.4 添加空格类别
@@ -246,8 +245,6 @@ Global:
   ...
   # 添加自定义字典，如修改字典请将路径指向新字典
   character_dict_path: ppocr/utils/ppocr_keys_v1.txt
-  # 修改字符类型
-  character_type: ch
   ...
   # 识别空格
   use_space_char: True
@@ -311,18 +308,18 @@ PaddleOCR目前已支持80种（除中文外）语种识别，`configs/rec/multi
 
 按语系划分，目前PaddleOCR支持的语种有：
 
-| 配置文件 |  算法名称 |   backbone |   trans   |   seq      |     pred     |  language | character_type |
-| :--------: |  :-------:   | :-------:  |   :-------:   |   :-----:   |  :-----:   | :-----:  | :-----:  |
-| rec_chinese_cht_lite_train.yml |  CRNN |   Mobilenet_v3 small 0.5 |  None   |  BiLSTM |  ctc  | 中文繁体  | chinese_cht|
-| rec_en_lite_train.yml |  CRNN |   Mobilenet_v3 small 0.5 |  None   |  BiLSTM |  ctc  | 英语（区分大小写）   | EN |
-| rec_french_lite_train.yml |  CRNN |   Mobilenet_v3 small 0.5 |  None   |  BiLSTM |  ctc  | 法语 |  french |
-| rec_ger_lite_train.yml |  CRNN |   Mobilenet_v3 small 0.5 |  None   |  BiLSTM |  ctc  | 德语   | german |
-| rec_japan_lite_train.yml |  CRNN |   Mobilenet_v3 small 0.5 |  None   |  BiLSTM |  ctc  | 日语  | japan |
-| rec_korean_lite_train.yml |  CRNN |   Mobilenet_v3 small 0.5 |  None   |  BiLSTM |  ctc  | 韩语  | korean |
-| rec_latin_lite_train.yml |  CRNN |   Mobilenet_v3 small 0.5 |  None   |  BiLSTM |  ctc  | 拉丁字母  | latin |
-| rec_arabic_lite_train.yml |  CRNN |   Mobilenet_v3 small 0.5 |  None   |  BiLSTM |  ctc  | 阿拉伯字母 |  ar |
-| rec_cyrillic_lite_train.yml |  CRNN |   Mobilenet_v3 small 0.5 |  None   |  BiLSTM |  ctc  | 斯拉夫字母  | cyrillic |
-| rec_devanagari_lite_train.yml |  CRNN |   Mobilenet_v3 small 0.5 |  None   |  BiLSTM |  ctc  | 梵文字母  | devanagari |
+| 配置文件 |  算法名称 |   backbone |   trans   |   seq      |     pred     |  language |
+| :--------: |  :-------:   | :-------:  |   :-------:   |   :-----:   |  :-----:   | :-----:  |
+| rec_chinese_cht_lite_train.yml |  CRNN |   Mobilenet_v3 small 0.5 |  None   |  BiLSTM |  ctc  | 中文繁体  |
+| rec_en_lite_train.yml |  CRNN |   Mobilenet_v3 small 0.5 |  None   |  BiLSTM |  ctc  | 英语（区分大小写）   |
+| rec_french_lite_train.yml |  CRNN |   Mobilenet_v3 small 0.5 |  None   |  BiLSTM |  ctc  | 法语 |  
+| rec_ger_lite_train.yml |  CRNN |   Mobilenet_v3 small 0.5 |  None   |  BiLSTM |  ctc  | 德语   |
+| rec_japan_lite_train.yml |  CRNN |   Mobilenet_v3 small 0.5 |  None   |  BiLSTM |  ctc  | 日语  |
+| rec_korean_lite_train.yml |  CRNN |   Mobilenet_v3 small 0.5 |  None   |  BiLSTM |  ctc  | 韩语  |
+| rec_latin_lite_train.yml |  CRNN |   Mobilenet_v3 small 0.5 |  None   |  BiLSTM |  ctc  | 拉丁字母  |
+| rec_arabic_lite_train.yml |  CRNN |   Mobilenet_v3 small 0.5 |  None   |  BiLSTM |  ctc  | 阿拉伯字母 |
+| rec_cyrillic_lite_train.yml |  CRNN |   Mobilenet_v3 small 0.5 |  None   |  BiLSTM |  ctc  | 斯拉夫字母  |
+| rec_devanagari_lite_train.yml |  CRNN |   Mobilenet_v3 small 0.5 |  None   |  BiLSTM |  ctc  | 梵文字母  |
 
 更多支持语种请参考: [多语言模型](https://github.com/PaddlePaddle/PaddleOCR/blob/release/2.1/doc/doc_ch/multi_languages.md#%E8%AF%AD%E7%A7%8D%E7%BC%A9%E5%86%99)
 
diff --git a/doc/doc_ch/training.md b/doc/doc_ch/training.md
index fb7f94a9e86cf392421ab6ed6f99cf2d49390096..c6c7b87d9925197b36a246c651ab7179ff9d2e81 100644
--- a/doc/doc_ch/training.md
+++ b/doc/doc_ch/training.md
@@ -129,3 +129,9 @@ PaddleOCR主要聚焦通用OCR，如果有垂类需求，您可以用PaddleOCR+
 
     A：识别模型训练初期acc为0是正常的，多训一段时间指标就上来了。
 
+
+***
+具体的训练教程可点击下方链接跳转：  
+- [文本检测模型训练](https://github.com/PaddlePaddle/PaddleOCR/blob/release/2.3/doc/doc_ch/detection.md)  
+- [文本识别模型训练](https://github.com/PaddlePaddle/PaddleOCR/blob/release/2.3/doc/doc_ch/recognition.md)  
+- [文本方向分类器训练](https://github.com/PaddlePaddle/PaddleOCR/blob/release/2.3/doc/doc_ch/angle_class.md)  
\ No newline at end of file
diff --git a/doc/doc_en/config_en.md b/doc/doc_en/config_en.md
index aa78263e4b73a3ac35250e5483a394ab77450c90..ce76da9b2f39532b387e3e45ca2ff497b0408635 100644
--- a/doc/doc_en/config_en.md
+++ b/doc/doc_en/config_en.md
@@ -1,4 +1,4 @@
-# Configuration 
+# Configuration
 
 - [1. Optional Parameter List](#1-optional-parameter-list)
 - [2. Intorduction to Global Parameters of Configuration File](#2-intorduction-to-global-parameters-of-configuration-file)
@@ -37,9 +37,8 @@ Take rec_chinese_lite_train_v2.0.yml as an example
 |      checkpoints         |    set model parameter path            |       None        |   Used to load parameters after interruption to continue training|
 |      use_visualdl  |    Set whether to enable visualdl for visual log display |          False        |    [Tutorial](https://www.paddlepaddle.org.cn/paddle/visualdl) |
 |      infer_img            |    Set inference image path or folder path     |       ./infer_img | \|
-|      character_dict_path |    Set dictionary path            |  ./ppocr/utils/ppocr_keys_v1.txt  |    \                 |
+|      character_dict_path |    Set dictionary path            |  ./ppocr/utils/ppocr_keys_v1.txt  |    If the character_dict_path is None, model can only recognize number and lower letters                 |
 |      max_text_length     |    Set the maximum length of text        |       25          |                \                 |
-|      character_type      |    Set character type            |       ch          |    en/ch, the default dict will be used for en, and the custom dict will be used for ch |
 |      use_space_char     |    Set whether to recognize spaces             |        True      |          Only support in character_type=ch mode                 |
 |      label_list          |    Set the angle supported by the direction classifier       |    ['0','180']    |     Only valid in angle classifier model |
 |      save_res_path          |    Set the save address of the test model results       |    ./output/det_db/predicts_db.txt    |     Only valid in the text detection model |
@@ -196,40 +195,39 @@ Italian is made up of Latin letters, so after executing the command, you will ge
       use_gpu: True
       epoch_num: 500
       ...
-      character_type: it  # language
       character_dict_path:  {path/of/dict} # path of dict
-   
+
    Train:
       dataset:
         name: SimpleDataSet
         data_dir: train_data/ # root directory of training data
         label_file_list: ["./train_data/train_list.txt"] # train label path
       ...
-   
+
    Eval:
       dataset:
         name: SimpleDataSet
         data_dir: train_data/ # root directory of val data
         label_file_list: ["./train_data/val_list.txt"] # val label path
       ...
-   
+
    ```
 
 
 Currently, the multi-language algorithms supported by PaddleOCR are:
 
-| Configuration file |  Algorithm name |   backbone |   trans   |   seq      |     pred     |  language | character_type |
-| :--------: |  :-------:   | :-------:  |   :-------:   |   :-----:   |  :-----:   | :-----:  | :-----:  |
-| rec_chinese_cht_lite_train.yml |  CRNN |   Mobilenet_v3 small 0.5 |  None   |  BiLSTM |  ctc  | chinese traditional  | chinese_cht|
-| rec_en_lite_train.yml |  CRNN |   Mobilenet_v3 small 0.5 |  None   |  BiLSTM |  ctc  | English(Case sensitive)   | EN |
-| rec_french_lite_train.yml |  CRNN |   Mobilenet_v3 small 0.5 |  None   |  BiLSTM |  ctc  | French |  french |
-| rec_ger_lite_train.yml |  CRNN |   Mobilenet_v3 small 0.5 |  None   |  BiLSTM |  ctc  | German   | german |
-| rec_japan_lite_train.yml |  CRNN |   Mobilenet_v3 small 0.5 |  None   |  BiLSTM |  ctc  | Japanese | japan |
-| rec_korean_lite_train.yml |  CRNN |   Mobilenet_v3 small 0.5 |  None   |  BiLSTM |  ctc  | Korean  | korean |
-| rec_latin_lite_train.yml |  CRNN |   Mobilenet_v3 small 0.5 |  None   |  BiLSTM |  ctc  | Latin  | latin |
-| rec_arabic_lite_train.yml |  CRNN |   Mobilenet_v3 small 0.5 |  None   |  BiLSTM |  ctc  | arabic |  ar |
-| rec_cyrillic_lite_train.yml |  CRNN |   Mobilenet_v3 small 0.5 |  None   |  BiLSTM |  ctc  | cyrillic   | cyrillic |
-| rec_devanagari_lite_train.yml |  CRNN |   Mobilenet_v3 small 0.5 |  None   |  BiLSTM |  ctc  | devanagari  | devanagari |
+| Configuration file |  Algorithm name |   backbone |   trans   |   seq      |     pred     |  language |
+| :--------: |  :-------:   | :-------:  |   :-------:   |   :-----:   |  :-----:   | :-----:  |
+| rec_chinese_cht_lite_train.yml |  CRNN |   Mobilenet_v3 small 0.5 |  None   |  BiLSTM |  ctc  | chinese traditional  |
+| rec_en_lite_train.yml |  CRNN |   Mobilenet_v3 small 0.5 |  None   |  BiLSTM |  ctc  | English(Case sensitive)   |
+| rec_french_lite_train.yml |  CRNN |   Mobilenet_v3 small 0.5 |  None   |  BiLSTM |  ctc  | French |  
+| rec_ger_lite_train.yml |  CRNN |   Mobilenet_v3 small 0.5 |  None   |  BiLSTM |  ctc  | German   |
+| rec_japan_lite_train.yml |  CRNN |   Mobilenet_v3 small 0.5 |  None   |  BiLSTM |  ctc  | Japanese |
+| rec_korean_lite_train.yml |  CRNN |   Mobilenet_v3 small 0.5 |  None   |  BiLSTM |  ctc  | Korean  |
+| rec_latin_lite_train.yml |  CRNN |   Mobilenet_v3 small 0.5 |  None   |  BiLSTM |  ctc  | Latin  |
+| rec_arabic_lite_train.yml |  CRNN |   Mobilenet_v3 small 0.5 |  None   |  BiLSTM |  ctc  | arabic |  
+| rec_cyrillic_lite_train.yml |  CRNN |   Mobilenet_v3 small 0.5 |  None   |  BiLSTM |  ctc  | cyrillic   |
+| rec_devanagari_lite_train.yml |  CRNN |   Mobilenet_v3 small 0.5 |  None   |  BiLSTM |  ctc  | devanagari  |
 
 For more supported languages, please refer to : [Multi-language model](https://github.com/PaddlePaddle/PaddleOCR/blob/release/2.1/doc/doc_en/multi_languages_en.md#4-support-languages-and-abbreviations)
 
diff --git a/doc/doc_en/inference_en.md b/doc/doc_en/inference_en.md
index b445232feeefadc355e0f38b329050e26ccc0368..019ac4d0ac15aceed89286048d2c4d88a259e501 100755
--- a/doc/doc_en/inference_en.md
+++ b/doc/doc_en/inference_en.md
@@ -21,7 +21,7 @@ Next, we first introduce how to convert a trained model into an inference model,
     - [2.2 DB Text Detection Model Inference](#DB_DETECTION)
     - [2.3 East Text Detection Model Inference](#EAST_DETECTION)
     - [2.4 Sast Text Detection Model Inference](#SAST_DETECTION)
-    
+
 - [3. Text Recognition Model Inference](#RECOGNITION_MODEL_INFERENCE)
     - [3.1 Lightweight Chinese Text Recognition Model Reference](#LIGHTWEIGHT_RECOGNITION)
     - [3.2 CTC-Based Text Recognition Model Inference](#CTC-BASED_RECOGNITION)
@@ -281,7 +281,7 @@ python3 tools/export_model.py -c configs/det/rec_r34_vd_none_bilstm_ctc.yml -o G
 For CRNN text recognition model inference, execute the following commands:
 
 ```
-python3 tools/infer/predict_rec.py --image_dir="./doc/imgs_words_en/word_336.png" --rec_model_dir="./inference/starnet/" --rec_image_shape="3, 32, 100" --rec_char_type="en"
+python3 tools/infer/predict_rec.py --image_dir="./doc/imgs_words_en/word_336.png" --rec_model_dir="./inference/starnet/" --rec_image_shape="3, 32, 100" --rec_char_dict_path="./ppocr/utils/ic15_dict.txt"
 ```
 
 ![](../imgs_words_en/word_336.png)
@@ -314,7 +314,7 @@ with the training, such as: --rec_image_shape="1, 64, 256"
 python3 tools/infer/predict_rec.py --image_dir="./doc/imgs_words_en/word_336.png" \
                                     --rec_model_dir="./inference/srn/" \
                                     --rec_image_shape="1, 64, 256" \
-                                    --rec_char_type="en" \
+                                    --rec_char_dict_path="./ppocr/utils/ic15_dict.txt" \
                                     --rec_algorithm="SRN"
 ```
 
@@ -323,7 +323,7 @@ python3 tools/infer/predict_rec.py --image_dir="./doc/imgs_words_en/word_336.png
 If the text dictionary is modified during training, when using the inference model to predict, you need to specify the dictionary path used by `--rec_char_dict_path`, and set `rec_char_type=ch`
 
 ```
-python3 tools/infer/predict_rec.py --image_dir="./doc/imgs_words_en/word_336.png" --rec_model_dir="./your inference model" --rec_image_shape="3, 32, 100" --rec_char_type="ch" --rec_char_dict_path="your text dict path"
+python3 tools/infer/predict_rec.py --image_dir="./doc/imgs_words_en/word_336.png" --rec_model_dir="./your inference model" --rec_image_shape="3, 32, 100"  --rec_char_dict_path="your text dict path"
 ```
 
 <a name="MULTILINGUAL_MODEL_INFERENCE"></a>
@@ -333,7 +333,7 @@ If you need to predict other language models, when using inference model predict
 You need to specify the visual font path through `--vis_font_path`. There are small language fonts provided by default under the `doc/fonts` path, such as Korean recognition:
 
 ```
-python3 tools/infer/predict_rec.py --image_dir="./doc/imgs_words/korean/1.jpg" --rec_model_dir="./your inference model" --rec_char_type="korean" --rec_char_dict_path="ppocr/utils/dict/korean_dict.txt" --vis_font_path="doc/fonts/korean.ttf"
+python3 tools/infer/predict_rec.py --image_dir="./doc/imgs_words/korean/1.jpg" --rec_model_dir="./your inference model"  --rec_char_dict_path="ppocr/utils/dict/korean_dict.txt" --vis_font_path="doc/fonts/korean.ttf"
 ```
 ![](../imgs_words/korean/1.jpg)
 
@@ -399,7 +399,7 @@ If you want to try other detection algorithms or recognition algorithms, please
 The following command uses the combination of the EAST text detection and STAR-Net text recognition:
 
 ```
-python3 tools/infer/predict_system.py --image_dir="./doc/imgs_en/img_10.jpg" --det_model_dir="./inference/det_east/" --det_algorithm="EAST" --rec_model_dir="./inference/starnet/" --rec_image_shape="3, 32, 100" --rec_char_type="en"
+python3 tools/infer/predict_system.py --image_dir="./doc/imgs_en/img_10.jpg" --det_model_dir="./inference/det_east/" --det_algorithm="EAST" --rec_model_dir="./inference/starnet/" --rec_image_shape="3, 32, 100" --rec_char_dict_path="./ppocr/utils/ic15_dict.txt"
 ```
 
 After executing the command, the recognition result image is as follows:
diff --git a/doc/doc_en/recognition_en.md b/doc/doc_en/recognition_en.md
index 84f5541562f9ce267da10abfad209ea1eb909a3e..51857ba16b7773ef38452fad6aa070f2117a9086 100644
--- a/doc/doc_en/recognition_en.md
+++ b/doc/doc_en/recognition_en.md
@@ -161,7 +161,7 @@ The current multi-language model is still in the demo stage and will continue to
 If you like, you can submit the dictionary file to [dict](../../ppocr/utils/dict) and we will thank you in the Repo.
 
 
-To customize the dict file, please modify the `character_dict_path` field in `configs/rec/rec_icdar15_train.yml` and set `character_type` to `ch`.
+To customize the dict file, please modify the `character_dict_path` field in `configs/rec/rec_icdar15_train.yml` .
 
 - Custom dictionary
 
@@ -172,8 +172,6 @@ If you need to customize dic file, please add character_dict_path field in confi
 
 If you want to support the recognition of the `space` category, please set the `use_space_char` field in the yml file to `True`.
 
-**Note: use_space_char only takes effect when character_type=ch**
-
 <a name="TRAINING"></a>
 ## 2.Training
 
@@ -250,7 +248,6 @@ Global:
   # Add a custom dictionary, such as modify the dictionary, please point the path to the new dictionary
   character_dict_path: ppocr/utils/ppocr_keys_v1.txt
   # Modify character type
-  character_type: ch
   ...
   # Whether to recognize spaces
   use_space_char: True
@@ -312,18 +309,18 @@ Eval:
 
 Currently, the multi-language algorithms supported by PaddleOCR are:
 
-| Configuration file |  Algorithm name |   backbone |   trans   |   seq      |     pred     |  language | character_type |
-| :--------: |  :-------:   | :-------:  |   :-------:   |   :-----:   |  :-----:   | :-----:  | :-----:  |
-| rec_chinese_cht_lite_train.yml |  CRNN |   Mobilenet_v3 small 0.5 |  None   |  BiLSTM |  ctc  | chinese traditional  | chinese_cht|
-| rec_en_lite_train.yml |  CRNN |   Mobilenet_v3 small 0.5 |  None   |  BiLSTM |  ctc  | English(Case sensitive)   | EN |
-| rec_french_lite_train.yml |  CRNN |   Mobilenet_v3 small 0.5 |  None   |  BiLSTM |  ctc  | French |  french |
-| rec_ger_lite_train.yml |  CRNN |   Mobilenet_v3 small 0.5 |  None   |  BiLSTM |  ctc  | German   | german |
-| rec_japan_lite_train.yml |  CRNN |   Mobilenet_v3 small 0.5 |  None   |  BiLSTM |  ctc  | Japanese | japan |
-| rec_korean_lite_train.yml |  CRNN |   Mobilenet_v3 small 0.5 |  None   |  BiLSTM |  ctc  | Korean  | korean |
-| rec_latin_lite_train.yml |  CRNN |   Mobilenet_v3 small 0.5 |  None   |  BiLSTM |  ctc  | Latin  | latin |
-| rec_arabic_lite_train.yml |  CRNN |   Mobilenet_v3 small 0.5 |  None   |  BiLSTM |  ctc  | arabic |  ar |
-| rec_cyrillic_lite_train.yml |  CRNN |   Mobilenet_v3 small 0.5 |  None   |  BiLSTM |  ctc  | cyrillic   | cyrillic |
-| rec_devanagari_lite_train.yml |  CRNN |   Mobilenet_v3 small 0.5 |  None   |  BiLSTM |  ctc  | devanagari  | devanagari |
+| Configuration file |  Algorithm name |   backbone |   trans   |   seq      |     pred     |  language |
+| :--------: |  :-------:   | :-------:  |   :-------:   |   :-----:   |  :-----:   | :-----:  |
+| rec_chinese_cht_lite_train.yml |  CRNN |   Mobilenet_v3 small 0.5 |  None   |  BiLSTM |  ctc  | chinese traditional  |
+| rec_en_lite_train.yml |  CRNN |   Mobilenet_v3 small 0.5 |  None   |  BiLSTM |  ctc  | English(Case sensitive)   |
+| rec_french_lite_train.yml |  CRNN |   Mobilenet_v3 small 0.5 |  None   |  BiLSTM |  ctc  | French |  
+| rec_ger_lite_train.yml |  CRNN |   Mobilenet_v3 small 0.5 |  None   |  BiLSTM |  ctc  | German   |
+| rec_japan_lite_train.yml |  CRNN |   Mobilenet_v3 small 0.5 |  None   |  BiLSTM |  ctc  | Japanese |
+| rec_korean_lite_train.yml |  CRNN |   Mobilenet_v3 small 0.5 |  None   |  BiLSTM |  ctc  | Korean  |
+| rec_latin_lite_train.yml |  CRNN |   Mobilenet_v3 small 0.5 |  None   |  BiLSTM |  ctc  | Latin  |
+| rec_arabic_lite_train.yml |  CRNN |   Mobilenet_v3 small 0.5 |  None   |  BiLSTM |  ctc  | arabic |
+| rec_cyrillic_lite_train.yml |  CRNN |   Mobilenet_v3 small 0.5 |  None   |  BiLSTM |  ctc  | cyrillic   |
+| rec_devanagari_lite_train.yml |  CRNN |   Mobilenet_v3 small 0.5 |  None   |  BiLSTM |  ctc  | devanagari  |
 
 For more supported languages, please refer to : [Multi-language model](https://github.com/PaddlePaddle/PaddleOCR/blob/release/2.1/doc/doc_en/multi_languages_en.md#4-support-languages-and-abbreviations)
 
@@ -471,6 +468,3 @@ inference/det_db/
   ```
   python3 tools/infer/predict_rec.py --image_dir="./doc/imgs_words_en/word_336.png" --rec_model_dir="./your inference model" --rec_image_shape="3, 32, 100" --rec_char_type="ch" --rec_char_dict_path="your text dict path"
   ```
-
-  
-
diff --git a/doc/doc_en/training_en.md b/doc/doc_en/training_en.md
index 106e41c0183b0cb20a038e154e155a25fdc6faa6..aa5500ac88fef97829b4f19c5421e36f18ae1812 100644
--- a/doc/doc_en/training_en.md
+++ b/doc/doc_en/training_en.md
@@ -147,3 +147,9 @@ There are several experiences for reference when constructing the data set:
 
     A: It is normal for the acc to be 0 at the beginning of the recognition model training, and the indicator will come up after a longer training period.
 
+
+***
+Click the following links for detailed training tutorial:  
+- [text detection model training](https://github.com/PaddlePaddle/PaddleOCR/blob/release/2.3/doc/doc_ch/detection.md)  
+- [text recognition model training](https://github.com/PaddlePaddle/PaddleOCR/blob/release/2.3/doc/doc_ch/recognition.md)  
+- [text direction classification model training](https://github.com/PaddlePaddle/PaddleOCR/blob/release/2.3/doc/doc_ch/angle_class.md)  
diff --git a/doc/joinus.PNG b/doc/joinus.PNG
index 974a4bd008d7b103de044cf8b4dbf37f09a0d06b..202ad0a5c6edf2190b71d5a7a544f1df94f866c4 100644
Binary files a/doc/joinus.PNG and b/doc/joinus.PNG differ
diff --git a/ppocr/data/imaug/label_ops.py b/ppocr/data/imaug/label_ops.py
index ebf52ec4e1d8713fd4da407318b14e682952606d..0a4fad621a9038e71a9d43eb4e12f78e7e92d73d 100644
--- a/ppocr/data/imaug/label_ops.py
+++ b/ppocr/data/imaug/label_ops.py
@@ -21,6 +21,8 @@ import numpy as np
 import string
 import json
 
+from ppocr.utils.logging import get_logger
+
 
 class ClsLabelEncode(object):
     def __init__(self, label_list, **kwargs):
@@ -92,31 +94,23 @@ class BaseRecLabelEncode(object):
     def __init__(self,
                  max_text_length,
                  character_dict_path=None,
-                 character_type='ch',
                  use_space_char=False):
-        support_character_type = [
-            'ch', 'en', 'EN_symbol', 'french', 'german', 'japan', 'korean',
-            'EN', 'it', 'xi', 'pu', 'ru', 'ar', 'ta', 'ug', 'fa', 'ur', 'rs',
-            'oc', 'rsc', 'bg', 'uk', 'be', 'te', 'ka', 'chinese_cht', 'hi',
-            'mr', 'ne', 'latin', 'arabic', 'cyrillic', 'devanagari'
-        ]
-        assert character_type in support_character_type, "Only {} are supported now but get {}".format(
-            support_character_type, character_type)
 
         self.max_text_len = max_text_length
         self.beg_str = "sos"
         self.end_str = "eos"
-        if character_type == "en":
+        self.lower = False
+
+        if character_dict_path is None:
+            logger = get_logger()
+            logger.warning(
+                "The character_dict_path is None, model can only recognize number and lower letters"
+            )
             self.character_str = "0123456789abcdefghijklmnopqrstuvwxyz"
             dict_character = list(self.character_str)
-        elif character_type == "EN_symbol":
-            # same with ASTER setting (use 94 char).
-            self.character_str = string.printable[:-6]
-            dict_character = list(self.character_str)
-        elif character_type in support_character_type:
+            self.lower = True
+        else:
             self.character_str = ""
-            assert character_dict_path is not None, "character_dict_path should not be None when character_type is {}".format(
-                character_type)
             with open(character_dict_path, "rb") as fin:
                 lines = fin.readlines()
                 for line in lines:
@@ -125,7 +119,6 @@ class BaseRecLabelEncode(object):
             if use_space_char:
                 self.character_str += " "
             dict_character = list(self.character_str)
-        self.character_type = character_type
         dict_character = self.add_special_char(dict_character)
         self.dict = {}
         for i, char in enumerate(dict_character):
@@ -147,7 +140,7 @@ class BaseRecLabelEncode(object):
         """
         if len(text) == 0 or len(text) > self.max_text_len:
             return None
-        if self.character_type == "en":
+        if self.lower:
             text = text.lower()
         text_list = []
         for char in text:
@@ -167,13 +160,11 @@ class NRTRLabelEncode(BaseRecLabelEncode):
     def __init__(self,
                  max_text_length,
                  character_dict_path=None,
-                 character_type='EN_symbol',
                  use_space_char=False,
                  **kwargs):
 
-        super(NRTRLabelEncode,
-              self).__init__(max_text_length, character_dict_path,
-                             character_type, use_space_char)
+        super(NRTRLabelEncode, self).__init__(
+            max_text_length, character_dict_path, use_space_char)
 
     def __call__(self, data):
         text = data['label']
@@ -200,12 +191,10 @@ class CTCLabelEncode(BaseRecLabelEncode):
     def __init__(self,
                  max_text_length,
                  character_dict_path=None,
-                 character_type='ch',
                  use_space_char=False,
                  **kwargs):
-        super(CTCLabelEncode,
-              self).__init__(max_text_length, character_dict_path,
-                             character_type, use_space_char)
+        super(CTCLabelEncode, self).__init__(
+            max_text_length, character_dict_path, use_space_char)
 
     def __call__(self, data):
         text = data['label']
@@ -231,12 +220,10 @@ class E2ELabelEncodeTest(BaseRecLabelEncode):
     def __init__(self,
                  max_text_length,
                  character_dict_path=None,
-                 character_type='EN',
                  use_space_char=False,
                  **kwargs):
-        super(E2ELabelEncodeTest,
-              self).__init__(max_text_length, character_dict_path,
-                             character_type, use_space_char)
+        super(E2ELabelEncodeTest, self).__init__(
+            max_text_length, character_dict_path, use_space_char)
 
     def __call__(self, data):
         import json
@@ -305,12 +292,10 @@ class AttnLabelEncode(BaseRecLabelEncode):
     def __init__(self,
                  max_text_length,
                  character_dict_path=None,
-                 character_type='ch',
                  use_space_char=False,
                  **kwargs):
-        super(AttnLabelEncode,
-              self).__init__(max_text_length, character_dict_path,
-                             character_type, use_space_char)
+        super(AttnLabelEncode, self).__init__(
+            max_text_length, character_dict_path, use_space_char)
 
     def add_special_char(self, dict_character):
         self.beg_str = "sos"
@@ -353,12 +338,10 @@ class SEEDLabelEncode(BaseRecLabelEncode):
     def __init__(self,
                  max_text_length,
                  character_dict_path=None,
-                 character_type='ch',
                  use_space_char=False,
                  **kwargs):
-        super(SEEDLabelEncode,
-              self).__init__(max_text_length, character_dict_path,
-                             character_type, use_space_char)
+        super(SEEDLabelEncode, self).__init__(
+            max_text_length, character_dict_path, use_space_char)
 
     def add_special_char(self, dict_character):
         self.end_str = "eos"
@@ -385,12 +368,10 @@ class SRNLabelEncode(BaseRecLabelEncode):
     def __init__(self,
                  max_text_length=25,
                  character_dict_path=None,
-                 character_type='en',
                  use_space_char=False,
                  **kwargs):
-        super(SRNLabelEncode,
-              self).__init__(max_text_length, character_dict_path,
-                             character_type, use_space_char)
+        super(SRNLabelEncode, self).__init__(
+            max_text_length, character_dict_path, use_space_char)
 
     def add_special_char(self, dict_character):
         dict_character = dict_character + [self.beg_str, self.end_str]
@@ -598,12 +579,10 @@ class SARLabelEncode(BaseRecLabelEncode):
     def __init__(self,
                  max_text_length,
                  character_dict_path=None,
-                 character_type='ch',
                  use_space_char=False,
                  **kwargs):
-        super(SARLabelEncode,
-              self).__init__(max_text_length, character_dict_path,
-                             character_type, use_space_char)
+        super(SARLabelEncode, self).__init__(
+            max_text_length, character_dict_path, use_space_char)
 
     def add_special_char(self, dict_character):
         beg_end_str = "<BOS/EOS>"
diff --git a/ppocr/data/imaug/rec_img_aug.py b/ppocr/data/imaug/rec_img_aug.py
index 71ed8976db7de24a489d1f75612a9a9a67995ba2..b4de6de95b09ced803375d9a3bb857194ef3e64b 100644
--- a/ppocr/data/imaug/rec_img_aug.py
+++ b/ppocr/data/imaug/rec_img_aug.py
@@ -87,17 +87,17 @@ class RecResizeImg(object):
     def __init__(self,
                  image_shape,
                  infer_mode=False,
-                 character_type='ch',
+                 character_dict_path='./ppocr/utils/ppocr_keys_v1.txt',
                  padding=True,
                  **kwargs):
         self.image_shape = image_shape
         self.infer_mode = infer_mode
-        self.character_type = character_type
+        self.character_dict_path = character_dict_path
         self.padding = padding
 
     def __call__(self, data):
         img = data['image']
-        if self.infer_mode and self.character_type == "ch":
+        if self.infer_mode and self.character_dict_path is not None:
             norm_img = resize_norm_img_chinese(img, self.image_shape)
         else:
             norm_img = resize_norm_img(img, self.image_shape, self.padding)
diff --git a/ppocr/postprocess/rec_postprocess.py b/ppocr/postprocess/rec_postprocess.py
index c06159ca55600e7afe01a68ab43acd1919cf742c..ef1a43fd0ee65f3e55a8f72dfd2f96c478da1a9a 100644
--- a/ppocr/postprocess/rec_postprocess.py
+++ b/ppocr/postprocess/rec_postprocess.py
@@ -21,33 +21,15 @@ import re
 class BaseRecLabelDecode(object):
     """ Convert between text-label and text-index """
 
-    def __init__(self,
-                 character_dict_path=None,
-                 character_type='ch',
-                 use_space_char=False):
-        support_character_type = [
-            'ch', 'en', 'EN_symbol', 'french', 'german', 'japan', 'korean',
-            'it', 'xi', 'pu', 'ru', 'ar', 'ta', 'ug', 'fa', 'ur', 'rs', 'oc',
-            'rsc', 'bg', 'uk', 'be', 'te', 'ka', 'chinese_cht', 'hi', 'mr',
-            'ne', 'EN', 'latin', 'arabic', 'cyrillic', 'devanagari'
-        ]
-        assert character_type in support_character_type, "Only {} are supported now but get {}".format(
-            support_character_type, character_type)
-
+    def __init__(self, character_dict_path=None, use_space_char=False):
         self.beg_str = "sos"
         self.end_str = "eos"
 
-        if character_type == "en":
+        self.character_str = []
+        if character_dict_path is None:
             self.character_str = "0123456789abcdefghijklmnopqrstuvwxyz"
             dict_character = list(self.character_str)
-        elif character_type == "EN_symbol":
-            # same with ASTER setting (use 94 char).
-            self.character_str = string.printable[:-6]
-            dict_character = list(self.character_str)
-        elif character_type in support_character_type:
-            self.character_str = []
-            assert character_dict_path is not None, "character_dict_path should not be None when character_type is {}".format(
-                character_type)
+        else:
             with open(character_dict_path, "rb") as fin:
                 lines = fin.readlines()
                 for line in lines:
@@ -57,9 +39,6 @@ class BaseRecLabelDecode(object):
                 self.character_str.append(" ")
             dict_character = list(self.character_str)
 
-        else:
-            raise NotImplementedError
-        self.character_type = character_type
         dict_character = self.add_special_char(dict_character)
         self.dict = {}
         for i, char in enumerate(dict_character):
@@ -102,13 +81,10 @@ class BaseRecLabelDecode(object):
 class CTCLabelDecode(BaseRecLabelDecode):
     """ Convert between text-label and text-index """
 
-    def __init__(self,
-                 character_dict_path=None,
-                 character_type='ch',
-                 use_space_char=False,
+    def __init__(self, character_dict_path=None, use_space_char=False,
                  **kwargs):
         super(CTCLabelDecode, self).__init__(character_dict_path,
-                                             character_type, use_space_char)
+                                             use_space_char)
 
     def __call__(self, preds, label=None, *args, **kwargs):
         if isinstance(preds, tuple):
@@ -136,13 +112,12 @@ class DistillationCTCLabelDecode(CTCLabelDecode):
 
     def __init__(self,
                  character_dict_path=None,
-                 character_type='ch',
                  use_space_char=False,
                  model_name=["student"],
                  key=None,
                  **kwargs):
-        super(DistillationCTCLabelDecode, self).__init__(
-            character_dict_path, character_type, use_space_char)
+        super(DistillationCTCLabelDecode, self).__init__(character_dict_path,
+                                                         use_space_char)
         if not isinstance(model_name, list):
             model_name = [model_name]
         self.model_name = model_name
@@ -162,13 +137,9 @@ class DistillationCTCLabelDecode(CTCLabelDecode):
 class NRTRLabelDecode(BaseRecLabelDecode):
     """ Convert between text-label and text-index """
 
-    def __init__(self,
-                 character_dict_path=None,
-                 character_type='EN_symbol',
-                 use_space_char=True,
-                 **kwargs):
+    def __init__(self, character_dict_path=None, use_space_char=True, **kwargs):
         super(NRTRLabelDecode, self).__init__(character_dict_path,
-                                              character_type, use_space_char)
+                                              use_space_char)
 
     def __call__(self, preds, label=None, *args, **kwargs):
 
@@ -230,13 +201,10 @@ class NRTRLabelDecode(BaseRecLabelDecode):
 class AttnLabelDecode(BaseRecLabelDecode):
     """ Convert between text-label and text-index """
 
-    def __init__(self,
-                 character_dict_path=None,
-                 character_type='ch',
-                 use_space_char=False,
+    def __init__(self, character_dict_path=None, use_space_char=False,
                  **kwargs):
         super(AttnLabelDecode, self).__init__(character_dict_path,
-                                              character_type, use_space_char)
+                                              use_space_char)
 
     def add_special_char(self, dict_character):
         self.beg_str = "sos"
@@ -313,13 +281,10 @@ class AttnLabelDecode(BaseRecLabelDecode):
 class SEEDLabelDecode(BaseRecLabelDecode):
     """ Convert between text-label and text-index """
 
-    def __init__(self,
-                 character_dict_path=None,
-                 character_type='ch',
-                 use_space_char=False,
+    def __init__(self, character_dict_path=None, use_space_char=False,
                  **kwargs):
         super(SEEDLabelDecode, self).__init__(character_dict_path,
-                                              character_type, use_space_char)
+                                              use_space_char)
 
     def add_special_char(self, dict_character):
         self.beg_str = "sos"
@@ -394,13 +359,10 @@ class SEEDLabelDecode(BaseRecLabelDecode):
 class SRNLabelDecode(BaseRecLabelDecode):
     """ Convert between text-label and text-index """
 
-    def __init__(self,
-                 character_dict_path=None,
-                 character_type='en',
-                 use_space_char=False,
+    def __init__(self, character_dict_path=None, use_space_char=False,
                  **kwargs):
         super(SRNLabelDecode, self).__init__(character_dict_path,
-                                             character_type, use_space_char)
+                                             use_space_char)
         self.max_text_length = kwargs.get('max_text_length', 25)
 
     def __call__(self, preds, label=None, *args, **kwargs):
@@ -616,13 +578,10 @@ class TableLabelDecode(object):
 class SARLabelDecode(BaseRecLabelDecode):
     """ Convert between text-label and text-index """
 
-    def __init__(self,
-                 character_dict_path=None,
-                 character_type='ch',
-                 use_space_char=False,
+    def __init__(self, character_dict_path=None, use_space_char=False,
                  **kwargs):
         super(SARLabelDecode, self).__init__(character_dict_path,
-                                             character_type, use_space_char)
+                                             use_space_char)
 
         self.rm_symbol = kwargs.get('rm_symbol', False)
 
diff --git a/ppocr/utils/EN_symbol_dict.txt b/ppocr/utils/EN_symbol_dict.txt
new file mode 100644
index 0000000000000000000000000000000000000000..1aef43d6b842731a54cbe682ccda5c2dbfa694d9
--- /dev/null
+++ b/ppocr/utils/EN_symbol_dict.txt
@@ -0,0 +1,94 @@
+0
+1
+2
+3
+4
+5
+6
+7
+8
+9
+a
+b
+c
+d
+e
+f
+g
+h
+i
+j
+k
+l
+m
+n
+o
+p
+q
+r
+s
+t
+u
+v
+w
+x
+y
+z
+A
+B
+C
+D
+E
+F
+G
+H
+I
+J
+K
+L
+M
+N
+O
+P
+Q
+R
+S
+T
+U
+V
+W
+X
+Y
+Z
+!
+"
+#
+$
+%
+&
+'
+(
+)
+*
++
+,
+-
+.
+/
+:
+;
+<
+=
+>
+?
+@
+[
+\
+]
+^
+_
+`
+{
+|
+}
+~
\ No newline at end of file
diff --git a/requirements.txt b/requirements.txt
index 311030f65f2dc2dad4a51821e64f2777e7621a0b..6758a59bad20f6ffa271766fc4d0df5ebf4c7a4b 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,5 +1,5 @@
 shapely
-scikit-image==0.17.2
+scikit-image==0.18.3
 imgaug==0.4.0
 pyclipper
 lmdb
diff --git a/tests/docs/test.png b/tests/docs/test.png
deleted file mode 100644
index a27c16ec75fbfb437240b9e05510b6fe74a5766b..0000000000000000000000000000000000000000
Binary files a/tests/docs/test.png and /dev/null differ
diff --git a/tests/docs/test_cpp.md b/tests/docs/test_cpp.md
deleted file mode 100644
index d8380671c01502b18b57523f012c5e096dc70fe0..0000000000000000000000000000000000000000
--- a/tests/docs/test_cpp.md
+++ /dev/null
@@ -1,56 +0,0 @@
-# C++预测功能测试
-
-C++预测功能测试的主程序为`test_cpp.sh`，可以测试基于C++预测库的模型推理功能。
-
-## 测试结论汇总
-
-| 算法名称 | 模型名称 |device | batchsize | mkldnn | cpu多线程 | tensorrt | 离线量化 |
-|  ----  |   ----  |  ----  |  ---- |  ---- |  ----  |  ----| --- | 
-| DB   |ch_ppocr_mobile_v2.0_det| CPU/GPU | 1/6 | 支持 | 支持 | fp32/fp16/int8 | 支持 |
-| DB   |ch_ppocr_server_v2.0_det| CPU/GPU | 1/6 | 支持 | 支持 | fp32/fp16/int8 | 支持 |
-| CRNN |ch_ppocr_mobile_v2.0_rec| CPU/GPU | 1/6 | 支持 | 支持 | fp32/fp16/int8 | 支持 |
-| CRNN |ch_ppocr_server_v2.0_rec| CPU/GPU | 1/6 | 支持 | 支持 | fp32/fp16/int8 | 支持 |
-|PP-OCR|ch_ppocr_server_v2.0    | CPU/GPU | 1/6 | 支持 | 支持 | fp32/fp16/int8 | 支持 |
-|PP-OCR|ch_ppocr_server_v2.0    | CPU/GPU | 1/6 | 支持 | 支持 | fp32/fp16/int8 | 支持 |
-
-
-
-## 1. 功能测试
-先运行`prepare.sh`准备数据和模型，然后运行`test_cpp.sh`进行测试，最终在```tests/output```目录下生成`cpp_infer_*.log`后缀的日志文件。
-
-```shell
-bash tests/prepare.sh ./tests/configs/ppocr_det_mobile_params.txt
-
-# 用法1:
-bash tests/test_cpp.sh ./tests/configs/ppocr_det_mobile_params.txt
-# 用法2: 指定GPU卡预测，第三个传入参数为GPU卡号
-bash tests/test_cpp.sh ./tests/configs/ppocr_det_mobile_params.txt '1'
-```  
- 
-
-## 2. 精度测试
-
-使用compare_results.py脚本比较模型预测的结果是否符合预期，主要步骤包括：
-- 提取日志中的预测坐标；
-- 从本地文件中提取保存好的坐标结果；
-- 比较上述两个结果是否符合精度预期，误差大于设置阈值时会报错。
-
-### 使用方式
-运行命令：
-```shell
-python3.7 tests/compare_results.py --gt_file=./tests/results/*.txt  --log_file=./tests/output/infer_*.log --atol=1e-3 --rtol=1e-3
-```
-
-参数介绍：  
-- gt_file： 指向事先保存好的预测结果路径，支持*.txt 结尾，会自动索引*.txt格式的文件，文件默认保存在tests/result/ 文件夹下
-- log_file: 指向运行tests/test.sh 脚本的infer模式保存的预测日志，预测日志中打印的有预测结果，比如：文本框，预测文本，类别等等，同样支持infer_*.log格式传入
-- atol: 设置的绝对误差
-- rtol: 设置的相对误差
-
-### 运行结果
-
-正常运行效果如下图：
-<img src="compare_right.png" width="1000">
-
-出现不一致结果时的运行输出：
-<img src="compare_wrong.png" width="1000">
diff --git a/tests/docs/test_python.md b/tests/docs/test_python.md
deleted file mode 100644
index 87c58395c6038ff68bd172a469a788d5886adcab..0000000000000000000000000000000000000000
--- a/tests/docs/test_python.md
+++ /dev/null
@@ -1,107 +0,0 @@
-# Python功能测试
-
-Python功能测试的主程序为`test_python.sh`，可以测试基于Python的模型训练、评估、推理等基本功能，包括裁剪、量化、蒸馏。
-
-## 测试结论汇总
-
-- 训练相关：
-
-| 算法名称 | 模型名称 | 单机单卡 | 单机多卡 | 多机多卡 | 模型压缩（单机多卡） |
-|  :----  |   :----  |    :----  |  :----   |  :----   |  :----   |
-|  DB  | ch_ppocr_mobile_v2.0_det| 正常训练 <br> 混合精度 | 正常训练 <br> 混合精度 | 正常训练 <br> 混合精度 | 正常训练：FPGM裁剪、PACT量化 |
-|  DB  | ch_ppocr_server_v2.0_det| 正常训练 <br> 混合精度 | 正常训练 <br> 混合精度 | 正常训练 <br> 混合精度 | 正常训练：FPGM裁剪、PACT量化 |
-| CRNN | ch_ppocr_mobile_v2.0_rec| 正常训练 <br> 混合精度 | 正常训练 <br> 混合精度 | 正常训练 <br> 混合精度 | 正常训练：FPGM裁剪、PACT量化 |
-| CRNN | ch_ppocr_server_v2.0_rec| 正常训练 <br> 混合精度 | 正常训练 <br> 混合精度 | 正常训练 <br> 混合精度 | 正常训练：FPGM裁剪、PACT量化 |
-|PP-OCR| ch_ppocr_mobile_v2.0| 正常训练 <br> 混合精度 | 正常训练 <br> 混合精度 | 正常训练 <br> 混合精度 | 正常训练：FPGM裁剪、PACT量化 |
-|PP-OCR| ch_ppocr_server_v2.0| 正常训练 <br> 混合精度 | 正常训练 <br> 混合精度 | 正常训练 <br> 混合精度 | 正常训练：FPGM裁剪、PACT量化 |
-
-
-- 预测相关：
-
-| 算法名称 | 模型名称 |device | batchsize | mkldnn | cpu多线程 | tensorrt | 离线量化 |
-|  ----  |   ----  |  ----  |  ---- |  ---- |  ----  |  ----| --- | 
-| DB   |ch_ppocr_mobile_v2.0_det| CPU/GPU | 1/6 | 支持 | 支持 | fp32/fp16/int8 | 支持 |
-| DB   |ch_ppocr_server_v2.0_det| CPU/GPU | 1/6 | 支持 | 支持 | fp32/fp16/int8 | 支持 |
-| CRNN |ch_ppocr_mobile_v2.0_rec| CPU/GPU | 1/6 | 支持 | 支持 | fp32/fp16/int8 | 支持 |
-| CRNN |ch_ppocr_server_v2.0_rec| CPU/GPU | 1/6 | 支持 | 支持 | fp32/fp16/int8 | 支持 |
-|PP-OCR|ch_ppocr_server_v2.0    | CPU/GPU | 1/6 | 支持 | 支持 | fp32/fp16/int8 | 支持 |
-|PP-OCR|ch_ppocr_server_v2.0    | CPU/GPU | 1/6 | 支持 | 支持 | fp32/fp16/int8 | 支持 |
-
-
-
-## 1. 安装依赖
-- 安装PaddlePaddle >= 2.0
-- 安装PaddleOCR依赖
-    ```
-    pip3 install  -r ../requirements.txt
-    ```
-- 安装autolog（规范化日志输出工具）
-    ```
-    git clone https://github.com/LDOUBLEV/AutoLog
-    cd AutoLog
-    pip3 install -r requirements.txt
-    python3 setup.py bdist_wheel
-    pip3 install ./dist/auto_log-1.0.0-py3-none-any.whl
-    cd ../
-    ```
-
-
-## 2. 功能测试
-先运行`prepare.sh`准备数据和模型，然后运行`test_python.sh`进行测试，最终在```tests/output```目录下生成`infer_*.log`格式的日志文件。
-
-test_python.sh包含四种运行模式，每种模式的运行数据不同，分别用于测试速度和精度，分别是：
-
-- 模式1：lite_train_infer，使用少量数据训练，用于快速验证训练到预测的走通流程，不验证精度和速度；
-```shell
-bash tests/prepare.sh ./tests/configs/ppocr_det_mobile_params.txt 'lite_train_infer'
-bash tests/test_python.sh ./tests/configs/ppocr_det_mobile_params.txt 'lite_train_infer'
-```  
-
-- 模式2：whole_infer，使用少量数据训练，一定量数据预测，用于验证训练后的模型执行预测，预测速度是否合理；
-```shell
-bash tests/prepare.sh ./tests/configs/ppocr_det_mobile_params.txt 'whole_infer'
-bash tests/test_python.sh ./tests/configs/ppocr_det_mobile_params.txt 'whole_infer'
-```  
-
-- 模式3：infer 不训练，全量数据预测，走通开源模型评估、动转静，检查inference model预测时间和精度;
-```shell
-bash tests/prepare.sh ./tests/configs/ppocr_det_mobile_params.txt 'infer'
-# 用法1:
-bash tests/test_python.sh ./tests/configs/ppocr_det_mobile_params.txt 'infer'
-# 用法2: 指定GPU卡预测，第三个传入参数为GPU卡号
-bash tests/test_python.sh ./tests/configs/ppocr_det_mobile_params.txt 'infer' '1'
-```  
-
-- 模式4：whole_train_infer , CE： 全量数据训练，全量数据预测，验证模型训练精度，预测精度，预测速度；
-```shell
-bash tests/prepare.sh ./tests/configs/ppocr_det_mobile_params.txt 'whole_train_infer'
-bash tests/test.sh ./tests/configs/ppocr_det_mobile_params.txt 'whole_train_infer'
-```  
-
-
-## 3. 精度测试
-
-使用compare_results.py脚本比较模型预测的结果是否符合预期，主要步骤包括：
-- 提取日志中的预测坐标；
-- 从本地文件中提取保存好的坐标结果；
-- 比较上述两个结果是否符合精度预期，误差大于设置阈值时会报错。
-
-### 使用方式
-运行命令：
-```shell
-python3.7 tests/compare_results.py --gt_file=./tests/results/*.txt  --log_file=./tests/output/infer_*.log --atol=1e-3 --rtol=1e-3
-```
-
-参数介绍：  
-- gt_file： 指向事先保存好的预测结果路径，支持*.txt 结尾，会自动索引*.txt格式的文件，文件默认保存在tests/result/ 文件夹下
-- log_file: 指向运行tests/test.sh 脚本的infer模式保存的预测日志，预测日志中打印的有预测结果，比如：文本框，预测文本，类别等等，同样支持infer_*.log格式传入
-- atol: 设置的绝对误差
-- rtol: 设置的相对误差
-
-### 运行结果
-
-正常运行效果如下图：
-<img src="compare_right.png" width="1000">
-
-出现不一致结果时的运行输出：
-<img src="compare_wrong.png" width="1000">
diff --git a/tests/readme.md b/tests/readme.md
deleted file mode 100644
index b7138a6801c3a589f5ca2ed0e8a6bafb08db3fec..0000000000000000000000000000000000000000
--- a/tests/readme.md
+++ /dev/null
@@ -1,93 +0,0 @@
-
-# 推理部署导航
-
-飞桨除了基本的模型训练和预测，还提供了支持多端多平台的高性能推理部署工具。本文档提供了PaddleOCR中所有模型的推理部署导航，方便用户查阅每种模型的推理部署打通情况，并可以进行一键测试。
-
-<div align="center">
-    <img src="docs/guide.png" width="1000">
-</div>
-
-打通情况汇总如下，已填写的部分表示可以使用本工具进行一键测试，未填写的表示正在支持中。
-
-| 算法论文 | 模型名称 | 模型类型 | python训练预测 |   其他  |
-| :--- | :--- |  :----  | :-------- |  :----  |
-| DB     |ch_ppocr_mobile_v2.0_det | 检测  | 支持 | Paddle Inference: C++预测 <br> Paddle Serving: Python, C++  <br> Paddle-Lite: Python, C++ / ARM CPU |
-| DB     |ch_ppocr_server_v2.0_det | 检测  | 支持 | Paddle Inference: C++预测 <br> Paddle Serving: Python, C++  <br> Paddle-Lite: Python, C++ / ARM CPU |
-| DB     |ch_PP-OCRv2_det          | 检测  |
-| CRNN   |ch_ppocr_mobile_v2.0_rec | 识别  | 支持 | Paddle Inference: C++预测 <br> Paddle Serving: Python, C++  <br> Paddle-Lite: Python, C++ / ARM CPU |
-| CRNN   |ch_ppocr_server_v2.0_rec | 识别  | 支持 | Paddle Inference: C++预测 <br> Paddle Serving: Python, C++  <br> Paddle-Lite: Python, C++ / ARM CPU |
-| CRNN   |ch_PP-OCRv2_rec          | 识别  |
-| DB     |det_mv3_db_v2.0                | 检测  |
-| DB     |det_r50_vd_db_v2.0             | 检测  |
-| EAST   |det_mv3_east_v2.0              | 检测  |
-| EAST   |det_r50_vd_east_v2.0           | 检测  |
-| PSENet |det_mv3_pse_v2.0               | 检测  |
-| PSENet |det_r50_vd_pse_v2.0            | 检测  |
-| SAST   |det_r50_vd_sast_totaltext_v2.0 | 检测  |
-| Rosetta|rec_mv3_none_none_ctc_v2.0     | 识别  |
-| Rosetta|rec_r34_vd_none_none_ctc_v2.0  | 识别  |
-| CRNN   |rec_mv3_none_bilstm_ctc_v2.0   | 识别  |
-| CRNN   |rec_r34_vd_none_bilstm_ctc_v2.0| 识别  |
-| StarNet|rec_mv3_tps_bilstm_ctc_v2.0    | 识别  |
-| StarNet|rec_r34_vd_tps_bilstm_ctc_v2.0 | 识别  |
-| RARE   |rec_mv3_tps_bilstm_att_v2.0    | 识别  |
-| RARE   |rec_r34_vd_tps_bilstm_att_v2.0 | 识别  |
-| SRN    |rec_r50fpn_vd_none_srn         | 识别  |
-| NRTR   |rec_mtb_nrtr                   | 识别  |
-| SAR    |rec_r31_sar                    | 识别  |
-| PGNet  |rec_r34_vd_none_none_ctc_v2.0  | 端到端|
-
-
-
-## 一键测试工具使用
-### 目录介绍
-
-```shell
-tests/
-├── configs/  # 配置文件目录
-	├── det_mv3_db.yml               # 测试mobile版ppocr检测模型训练的yml文件
-	├── det_r50_vd_db.yml            # 测试server版ppocr检测模型训练的yml文件
-	├── rec_icdar15_r34_train.yml    # 测试server版ppocr识别模型训练的yml文件
-	├── ppocr_sys_mobile_params.txt     # 测试mobile版ppocr检测+识别模型串联的参数配置文件
-	├── ppocr_det_mobile_params.txt     # 测试mobile版ppocr检测模型的参数配置文件
-	├── ppocr_rec_mobile_params.txt     # 测试mobile版ppocr识别模型的参数配置文件
-	├── ppocr_sys_server_params.txt     # 测试server版ppocr检测+识别模型串联的参数配置文件
-	├── ppocr_det_server_params.txt     # 测试server版ppocr检测模型的参数配置文件
-	├── ppocr_rec_server_params.txt     # 测试server版ppocr识别模型的参数配置文件
-	├── ...                                
-├── results/   # 预先保存的预测结果，用于和实际预测结果进行精读比对
-	├── ppocr_det_mobile_results_fp32.txt           # 预存的mobile版ppocr检测模型fp32精度的结果
-	├── ppocr_det_mobile_results_fp16.txt           # 预存的mobile版ppocr检测模型fp16精度的结果
-	├── ppocr_det_mobile_results_fp32_cpp.txt       # 预存的mobile版ppocr检测模型c++预测的fp32精度的结果
-	├── ppocr_det_mobile_results_fp16_cpp.txt       # 预存的mobile版ppocr检测模型c++预测的fp16精度的结果
-	├── ...
-├── prepare.sh                # 完成test_*.sh运行所需要的数据和模型下载
-├── test_python.sh            # 测试python训练预测的主程序
-├── test_cpp.sh               # 测试c++预测的主程序
-├── test_serving.sh           # 测试serving部署预测的主程序
-├── test_lite.sh              # 测试lite部署预测的主程序
-├── compare_results.py        # 用于对比log中的预测结果与results中的预存结果精度误差是否在限定范围内
-└── readme.md                 # 使用文档
-```
-
-### 测试流程
-使用本工具，可以测试不同功能的支持情况，以及预测结果是否对齐，测试流程如下：
-<div align="center">
-    <img src="docs/test.png" width="800">
-</div>
-
-1. 运行prepare.sh准备测试所需数据和模型；
-2. 运行要测试的功能对应的测试脚本`test_*.sh`，产出log，由log可以看到不同配置是否运行成功；
-3. 用`compare_results.py`对比log中的预测结果和预存在results目录下的结果，判断预测精度是否符合预期（在误差范围内）。
-
-其中，有4个测试主程序，功能如下：
-- `test_python.sh`：测试基于Python的模型训练、评估、推理等基本功能，包括裁剪、量化、蒸馏。
-- `test_cpp.sh`：测试基于C++的模型推理。
-- `test_serving.sh`：测试基于Paddle Serving的服务化部署功能。
-- `test_lite.sh`：测试基于Paddle-Lite的端侧预测部署功能。
-
-各功能测试中涉及GPU/CPU、mkldnn、Tensorrt等多种参数配置，点击相应链接了解更多细节和使用教程：  
-[test_python使用](docs/test_python.md)  
-[test_cpp使用](docs/test_cpp.md)  
-[test_serving使用](docs/test_serving.md)  
-[test_lite使用](docs/test_lite.md)  
diff --git a/tools/infer/predict_cls.py b/tools/infer/predict_cls.py
index 53e50bd6d1d1a2bd07b9f1204b9f56594c669d13..1c68494861e60b4aaef541a4e247071944cf420c 100755
--- a/tools/infer/predict_cls.py
+++ b/tools/infer/predict_cls.py
@@ -131,14 +131,9 @@ def main(args):
         img_list.append(img)
     try:
         img_list, cls_res, predict_time = text_classifier(img_list)
-    except:
+    except Exception as E:
         logger.info(traceback.format_exc())
-        logger.info(
-            "ERROR!!!! \n"
-            "Please read the FAQ：https://github.com/PaddlePaddle/PaddleOCR#faq \n"
-            "If your model has tps module:  "
-            "TPS does not support variable shape.\n"
-            "Please set --rec_image_shape='3,32,100' and --rec_char_type='en' ")
+        logger.info(E)
         exit()
     for ino in range(len(img_list)):
         logger.info("Predicts of {}:{}".format(valid_image_file_list[ino],
diff --git a/tools/infer/predict_rec.py b/tools/infer/predict_rec.py
index dad70281ef7604f110d29963103068bba1c8fd9d..936994a215d10d543537b29cb41bfa42b42590c7 100755
--- a/tools/infer/predict_rec.py
+++ b/tools/infer/predict_rec.py
@@ -38,40 +38,34 @@ logger = get_logger()
 class TextRecognizer(object):
     def __init__(self, args):
         self.rec_image_shape = [int(v) for v in args.rec_image_shape.split(",")]
-        self.character_type = args.rec_char_type
         self.rec_batch_num = args.rec_batch_num
         self.rec_algorithm = args.rec_algorithm
         postprocess_params = {
             'name': 'CTCLabelDecode',
-            "character_type": args.rec_char_type,
             "character_dict_path": args.rec_char_dict_path,
             "use_space_char": args.use_space_char
         }
         if self.rec_algorithm == "SRN":
             postprocess_params = {
                 'name': 'SRNLabelDecode',
-                "character_type": args.rec_char_type,
                 "character_dict_path": args.rec_char_dict_path,
                 "use_space_char": args.use_space_char
             }
         elif self.rec_algorithm == "RARE":
             postprocess_params = {
                 'name': 'AttnLabelDecode',
-                "character_type": args.rec_char_type,
                 "character_dict_path": args.rec_char_dict_path,
                 "use_space_char": args.use_space_char
             }
         elif self.rec_algorithm == 'NRTR':
             postprocess_params = {
                 'name': 'NRTRLabelDecode',
-                "character_type": args.rec_char_type,
                 "character_dict_path": args.rec_char_dict_path,
                 "use_space_char": args.use_space_char
             }
         elif self.rec_algorithm == "SAR":
             postprocess_params = {
                 'name': 'SARLabelDecode',
-                "character_type": args.rec_char_type,
                 "character_dict_path": args.rec_char_dict_path,
                 "use_space_char": args.use_space_char
             }
diff --git a/tools/infer/utility.py b/tools/infer/utility.py
index 538f55c42b223f9741c5c7006dd7d1478ce1920b..41a3c0f14b6378751a367a3709ad7943ee981a4e 100755
--- a/tools/infer/utility.py
+++ b/tools/infer/utility.py
@@ -74,7 +74,6 @@ def init_args():
     parser.add_argument("--rec_algorithm", type=str, default='CRNN')
     parser.add_argument("--rec_model_dir", type=str)
     parser.add_argument("--rec_image_shape", type=str, default="3, 32, 320")
-    parser.add_argument("--rec_char_type", type=str, default='ch')
     parser.add_argument("--rec_batch_num", type=int, default=6)
     parser.add_argument("--max_text_length", type=int, default=25)
     parser.add_argument(
@@ -268,10 +267,11 @@ def create_predictor(args, mode, logger):
             # cache 10 different shapes for mkldnn to avoid memory leak
             config.set_mkldnn_cache_capacity(10)
             config.enable_mkldnn()
-
+            if args.precision == "fp16":
+                config.enable_mkldnn_bfloat16()
     # enable memory optim
     config.enable_memory_optim()
-    #config.disable_glog_info()
+    config.disable_glog_info()
 
     config.delete_pass("conv_transpose_eltwiseadd_bn_fuse_pass")
     if mode == 'table':
diff --git a/tools/program.py b/tools/program.py
index 798e6dff297ad1149942488cca1d5540f1924867..6456aad5dcda764816e5af7b5becf30cc7192af4 100755
--- a/tools/program.py
+++ b/tools/program.py
@@ -159,7 +159,8 @@ def train(config,
           eval_class,
           pre_best_model_dict,
           logger,
-          vdl_writer=None):
+          vdl_writer=None,
+          scaler=None):
     cal_metric_during_train = config['Global'].get('cal_metric_during_train',
                                                    False)
     log_smooth_window = config['Global']['log_smooth_window']
@@ -226,14 +227,29 @@ def train(config,
             images = batch[0]
             if use_srn:
                 model_average = True
-            if model_type == 'table' or extra_input:
-                preds = model(images, data=batch[1:])
+
+            # use amp
+            if scaler:
+                with paddle.amp.auto_cast():
+                    if model_type == 'table' or extra_input:
+                        preds = model(images, data=batch[1:])
+                    else:
+                        preds = model(images)
             else:
-                preds = model(images)
+                if model_type == 'table' or extra_input:
+                    preds = model(images, data=batch[1:])
+                else:
+                    preds = model(images)
             loss = loss_class(preds, batch)
             avg_loss = loss['loss']
-            avg_loss.backward()
-            optimizer.step()
+
+            if scaler:
+                scaled_avg_loss = scaler.scale(avg_loss)
+                scaled_avg_loss.backward()
+                scaler.minimize(optimizer, scaled_avg_loss)
+            else:
+                avg_loss.backward()
+                optimizer.step()
             optimizer.clear_grad()
 
             train_batch_cost += time.time() - batch_start
diff --git a/tools/train.py b/tools/train.py
index 05d295aa99718c25b94a123c23d08c2904fe8c6a..d182af2988cb29511be40a079d2b3e06605ebe28 100755
--- a/tools/train.py
+++ b/tools/train.py
@@ -102,10 +102,27 @@ def main(config, device, logger, vdl_writer):
     if valid_dataloader is not None:
         logger.info('valid dataloader has {} iters'.format(
             len(valid_dataloader)))
+
+    use_amp = config["Global"].get("use_amp", False)
+    if use_amp:
+        AMP_RELATED_FLAGS_SETTING = {
+            'FLAGS_cudnn_batchnorm_spatial_persistent': 1,
+            'FLAGS_max_inplace_grad_add': 8,
+        }
+        paddle.fluid.set_flags(AMP_RELATED_FLAGS_SETTING)
+        scale_loss = config["Global"].get("scale_loss", 1.0)
+        use_dynamic_loss_scaling = config["Global"].get(
+            "use_dynamic_loss_scaling", False)
+        scaler = paddle.amp.GradScaler(
+            init_loss_scaling=scale_loss,
+            use_dynamic_loss_scaling=use_dynamic_loss_scaling)
+    else:
+        scaler = None
+
     # start train
     program.train(config, train_dataloader, valid_dataloader, device, model,
                   loss_class, optimizer, lr_scheduler, post_process_class,
-                  eval_class, pre_best_model_dict, logger, vdl_writer)
+                  eval_class, pre_best_model_dict, logger, vdl_writer, scaler)
 
 
 def test_reader(config, device, logger):