diff --git a/README.md b/README.md
index f4556441bce2c3e0ed22e2ea26aa3e3f1ef2245a..6c85bbac047b70a794c8e10399b686cd7e29bcbc 100644
--- a/README.md
+++ b/README.md
@@ -92,6 +92,7 @@ python3 tools/infer/predict_system.py --image_dir="./doc/imgs/11.jpg" --det_mode
 - [文本检测模型训练/评估/预测](./doc/doc_ch/detection.md)
 - [文本识别模型训练/评估/预测](./doc/doc_ch/recognition.md)
 - [基于预测引擎推理](./doc/doc_ch/inference.md)
+- [yml配置文件参数介绍](./doc/doc_ch/config_ch.md)
 - [数据集](./doc/doc_ch/datasets.md)
 - [FAQ](#FAQ)
 - [联系我们](#欢迎加入PaddleOCR技术交流群)
diff --git a/README_en.md b/README_en.md
index 610c25b7eb1ac7c043e39420f777bb3346c3bb08..277f0d9fc21cc8ed4f83da1bb39743ae58a3557a 100644
--- a/README_en.md
+++ b/README_en.md
@@ -92,7 +92,9 @@ For more text detection and recognition models, please refer to the document [In
 - [Text detection model training/evaluation/prediction](./doc/doc_en/detection_en.md)
 - [Text recognition model training/evaluation/prediction](./doc/doc_en/recognition_en.md)
 - [Inference](./doc/doc_en/inference_en.md)
+- [Introduction of yml file](./doc/doc_en/config_en.md)
 - [Dataset](./doc/doc_en/datasets_en.md)
+- [FAQ]((#FAQ)
 
 ## TEXT DETECTION ALGORITHM
 
@@ -170,6 +172,7 @@ Please refer to the document for training guide and use of PaddleOCR text recogn
 ![](doc/imgs_results/chinese_db_crnn_server/2.jpg)
 ![](doc/imgs_results/chinese_db_crnn_server/8.jpg)
 
+<a name="FAQ"></a>
 ## FAQ
 1. Error when using attention-based recognition model: KeyError: 'predict'
 
diff --git a/configs/det/det_mv3_db.yml b/configs/det/det_mv3_db.yml
index 8efa66a92d6e8c031efef48d738d9690bcc5554c..f02c61c9181f60c0c77c0b3aae944a04e3b97a83 100755
--- a/configs/det/det_mv3_db.yml
+++ b/configs/det/det_mv3_db.yml
@@ -6,7 +6,8 @@ Global:
   print_batch_step: 2
   save_model_dir: ./output/det_db/
   save_epoch_step: 200
-  eval_batch_step: 5000
+  # evaluation is run every 2000 iterations after the 5000th iteration
+  eval_batch_step: [5000, 5000]
   train_batch_size_per_card: 16
   test_batch_size_per_card: 16
   image_shape: [3, 640, 640]
@@ -50,4 +51,4 @@ PostProcess:
   thresh: 0.3
   box_thresh: 0.7
   max_candidates: 1000
-  unclip_ratio: 2.0
\ No newline at end of file
+  unclip_ratio: 2.0
diff --git a/configs/det/det_mv3_east.yml b/configs/det/det_mv3_east.yml
index b6f37256291912757cd1d5b98d1f745d08452fd6..67b82fffff8c47e5ee5866ad22f238ece3822776 100755
--- a/configs/det/det_mv3_east.yml
+++ b/configs/det/det_mv3_east.yml
@@ -6,7 +6,7 @@ Global:
   print_batch_step: 5
   save_model_dir: ./output/det_east/
   save_epoch_step: 200
-  eval_batch_step: 5000
+  eval_batch_step: [5000, 5000]
   train_batch_size_per_card: 16
   test_batch_size_per_card: 16
   image_shape: [3, 512, 512]
diff --git a/configs/det/det_r50_vd_db.yml b/configs/det/det_r50_vd_db.yml
index 6e3b3b9e264b29fcac2b2b9b20ee2f88d5c975f3..9a3b77e7cebce99f669d0b1be89ee56c84f41034 100755
--- a/configs/det/det_r50_vd_db.yml
+++ b/configs/det/det_r50_vd_db.yml
@@ -6,7 +6,7 @@ Global:
   print_batch_step: 2
   save_model_dir: ./output/det_db/
   save_epoch_step: 200
-  eval_batch_step: 5000
+  eval_batch_step: [5000, 5000]
   train_batch_size_per_card: 8
   test_batch_size_per_card: 16
   image_shape: [3, 640, 640]
diff --git a/configs/det/det_r50_vd_east.yml b/configs/det/det_r50_vd_east.yml
index bb16f9fa12424db293ba498e78b00f279f1a7ff6..8d86819937c902e47dded38ae0238fb8254d8ff0 100755
--- a/configs/det/det_r50_vd_east.yml
+++ b/configs/det/det_r50_vd_east.yml
@@ -6,7 +6,7 @@ Global:
   print_batch_step: 5
   save_model_dir: ./output/det_east/
   save_epoch_step: 200
-  eval_batch_step: 5000
+  eval_batch_step: [5000, 5000]
   train_batch_size_per_card: 8
   test_batch_size_per_card: 16
   image_shape: [3, 512, 512]