diff --git a/docs/zh_cn/api_cn/static/auto-compression/auto_compression_api.rst b/docs/zh_cn/api_cn/static/auto-compression/auto_compression_api.rst
index f5731df45e0309dfca0d69a8c2a1c9ba5d5db5c7..c308413db6c32088b766bf50d5ed3c7dc0570677 100644
--- a/docs/zh_cn/api_cn/static/auto-compression/auto_compression_api.rst
+++ b/docs/zh_cn/api_cn/static/auto-compression/auto_compression_api.rst
@@ -3,19 +3,19 @@ AutoCompression自动压缩功能
 
 AutoCompression
 ---------------
-.. py:class:: paddleslim.auto_compression.AutoCompression(model_dir, model_filename, params_filename, save_dir, strategy_config, train_config, train_dataloader, eval_callback, devices='gpu')
+.. py:class:: paddleslim.auto_compression.AutoCompression(model_dir, train_dataloader, model_filename, params_filename, save_dir, strategy_config, train_config, eval_callback, devices='gpu')
 
-`源代码 <https://github.com/PaddlePaddle/PaddleSlim/blob/develop/paddleslim/auto_compression/auto_compression.py#L32>`_
+`源代码 <https://github.com/PaddlePaddle/PaddleSlim/blob/develop/paddleslim/auto_compression/auto_compression.py#L49>`_
 
 根据指定的配置对使用 ``paddle.jit.save`` 接口或者 ``paddle.static.save_inference_model`` 接口保存的推理模型进行压缩。
 
 **参数: **
 
 - **model_dir(str)** - 需要压缩的推理模型所在的目录。
+- **train_dataloader(paddle.io.DataLoader)** - 训练数据迭代器。注意：如果选择离线量化超参搜索策略的话, ``train_dataloader`` 和 ``eval_callback`` 设置相同的数据读取即可。
 - **model_filename(str)** - 需要压缩的推理模型文件名称。
 - **params_filename(str)** - 需要压缩的推理模型参数文件名称。
 - **save_dir(str)** - 压缩后模型的所保存的目录。
-- **train_dataloader(paddle.io.DataLoader)** - 训练数据迭代器。注意：如果选择离线量化超参搜索策略的话, ``train_dataloader`` 和 ``eval_callback`` 设置相同的数据读取即可。
 - **train_config(dict)** - 训练配置。可以配置的参数请参考: `<https://github.com/PaddlePaddle/PaddleSlim/blob/develop/paddleslim/auto_compression/strategy_config.py#L103>`_ 。注意：如果选择离线量化超参搜索策略的话， ``train_config`` 直接设置为 ``None`` 即可。
 - **strategy_config(dict, list(dict), 可选)** - 使用的压缩策略，可以通过设置多个单种策略来并行使用这些压缩方式。字典的关键字必须在: 
              ``Quantization`` (量化配置, 可配置的参数参考 `<https://github.com/PaddlePaddle/PaddleSlim/blob/develop/paddleslim/auto_compression/strategy_config.py#L24>`_ ), 
@@ -82,13 +82,13 @@ AutoCompression
 
    eval_dataloader = Cifar10(mode='eval')
 
-   ac = AutoCompression(model_path, model_filename, params_filename, save_dir, \
+   ac = AutoCompression(model_path, train_dataloader, model_filename, params_filename, save_dir, \
 
                         strategy_config="Quantization": Quantization(**default_ptq_config), 
 
                         "Distillation": HyperParameterOptimization(**default_distill_config)}, \
 
-                        train_config=None, train_dataloader=train_dataloader, eval_callback=eval_dataloader,devices='gpu')
+                        train_config=None, eval_callback=eval_dataloader,devices='gpu')
 
 ```
  
diff --git a/example/auto_compression/pytorch_yolov5/README.md b/example/auto_compression/pytorch_yolov5/README.md
index 81cab034d679bbe251c7308ad3fe92ab93911388..aeaf7f28f461c7ac3a0e7d9f8cfa26e35714c20c 100644
--- a/example/auto_compression/pytorch_yolov5/README.md
+++ b/example/auto_compression/pytorch_yolov5/README.md
@@ -22,7 +22,7 @@
 
 | 模型  |  策略  | 输入尺寸 | mAP<sup>val<br>0.5:0.95 | 预测时延<sup><small>FP32</small><sup><br><sup>(ms) |预测时延<sup><small>FP16</small><sup><br><sup>(ms) | 预测时延<sup><small>INT8</small><sup><br><sup>(ms) |  配置文件 | Inference模型  |
 | :-------- |:-------- |:--------: | :---------------------: | :----------------: | :----------------: | :---------------: | :-----------------------------: | :-----------------------------: |
-| YOLOv5s |  Base模型 | 640*640  |  37.4   |   5.95ms  |   2.44ms   |  -  |  - | [Model](https://bj.bcebos.com/v1/paddle-slim-models/detection/yolov5s_infer.tar) |
+| YOLOv5s |  Base模型 | 640*640  |  37.4   |   5.95ms  |   2.44ms   |  -  |  - | [Model](https://paddle-slim-models.bj.bcebos.com/act/yolov5s.onnx) |
 | YOLOv5s |  KL离线量化 | 640*640  |  36.0   |   - |   -   |  1.87ms  |  - | - |
 | YOLOv5s |  量化蒸馏训练 | 640*640  |  **36.9**   |   - |   -   |  **1.87ms**  |  [config](./configs/yolov5s_qat_dis.yaml) | [Infer Model](https://bj.bcebos.com/v1/paddle-slim-models/act/yolov5s_quant.tar) &#124; [ONNX Model](https://bj.bcebos.com/v1/paddle-slim-models/act/yolov5s_quant.onnx) |
 
@@ -60,37 +60,18 @@ pip install paddledet
 
 注：安装PaddleDet的目的是为了直接使用PaddleDetection中的Dataloader组件。
 
-（4）安装X2Paddle的1.3.6以上版本：
-```shell
-pip install x2paddle sympy onnx
-```
-
 #### 3.2 准备数据集
 
 本案例默认以COCO数据进行自动压缩实验，并且依赖PaddleDetection中数据读取模块，如果自定义COCO数据，或者其他格式数据，请参考[PaddleDetection数据准备文档](https://github.com/PaddlePaddle/PaddleDetection/blob/release/2.4/docs/tutorials/PrepareDataSet.md) 来准备数据。
 
 如果已经准备好数据集，请直接修改[./configs/yolov6_reader.yml]中`EvalDataset`的`dataset_dir`字段为自己数据集路径即可。
 
-#### 3.3 准备预测模型
-
-（1）准备ONNX模型：
+#### 3.3 准备ONNX预测模型
 
 可通过[ultralytics/yolov5](https://github.com/ultralytics/yolov5) 官方的[导出教程](https://github.com/ultralytics/yolov5/issues/251)来准备ONNX模型。也可以下载准备好的[yolov5s.onnx](https://paddle-slim-models.bj.bcebos.com/act/yolov5s.onnx)。
 ```shell
 python export.py --weights yolov5s.pt --include onnx
 ```
-
-(2) 转换模型：
-```shell
-x2paddle --framework=onnx --model=yolov5s.onnx --save_dir=pd_model
-cp -r pd_model/inference_model/ yolov5s_infer
-```
-即可得到YOLOv5s模型的预测模型（`model.pdmodel` 和 `model.pdiparams`）。如想快速体验，可直接下载上方表格中YOLOv5s的[Paddle预测模型](https://bj.bcebos.com/v1/paddle-slim-models/detection/yolov5s_infer.tar)。
-
-
-预测模型的格式为：`model.pdmodel` 和 `model.pdiparams`两个，带`pdmodel`的是模型文件，带`pdiparams`后缀的是权重文件。
-
-
 #### 3.4 自动压缩并产出模型
 
 蒸馏量化自动压缩示例通过run.py脚本启动，会使用接口```paddleslim.auto_compression.AutoCompression```对模型进行自动压缩。配置config文件中模型路径、蒸馏、量化、和训练等部分的参数，配置完成后便可对模型进行量化和蒸馏。具体运行命令为：
diff --git a/example/auto_compression/pytorch_yolov5/configs/yolov5s_qat_dis.yaml b/example/auto_compression/pytorch_yolov5/configs/yolov5s_qat_dis.yaml
index 06fb8d89a5dc7b205cad2576164bb4869f198739..571682229d647f6dc4c3e6dcb4a99a4b727cc35a 100644
--- a/example/auto_compression/pytorch_yolov5/configs/yolov5s_qat_dis.yaml
+++ b/example/auto_compression/pytorch_yolov5/configs/yolov5s_qat_dis.yaml
@@ -4,9 +4,7 @@ Global:
   input_list: {'image': 'x2paddle_images'}
   Evaluation: True
   arch: 'YOLOv5'
-  model_dir: ./yolov5s_infer
-  model_filename: model.pdmodel
-  params_filename: model.pdiparams
+  model_dir: ./yolov5s.onnx
 
 Distillation:
   alpha: 1.0
diff --git a/example/auto_compression/pytorch_yolov5/eval.py b/example/auto_compression/pytorch_yolov5/eval.py
index 55be2feba92889bac7f19143bddffaa4c7ef632a..69dcf23711daf5addb0ab89aaa91e256e66d2f29 100644
--- a/example/auto_compression/pytorch_yolov5/eval.py
+++ b/example/auto_compression/pytorch_yolov5/eval.py
@@ -21,7 +21,7 @@ from ppdet.core.workspace import load_config, merge_config
 from ppdet.core.workspace import create
 from ppdet.metrics import COCOMetric, VOCMetric
 from paddleslim.auto_compression.config_helpers import load_config as load_slim_config
-
+from paddleslim.common import load_onnx_model
 from post_process import YOLOv5PostProcess
 
 
@@ -76,13 +76,8 @@ def eval():
 
     place = paddle.CUDAPlace(0) if FLAGS.devices == 'gpu' else paddle.CPUPlace()
     exe = paddle.static.Executor(place)
-
-    val_program, feed_target_names, fetch_targets = paddle.static.load_inference_model(
-        global_config["model_dir"],
-        exe,
-        model_filename=global_config["model_filename"],
-        params_filename=global_config["params_filename"])
-    print('Loaded model from: {}'.format(global_config["model_dir"]))
+    val_program, feed_target_names, fetch_targets = load_onnx_model(
+        global_config["model_dir"])
 
     metric = global_config['metric']
     for batch_id, data in enumerate(val_loader):
diff --git a/example/auto_compression/pytorch_yolov5/post_quant.py b/example/auto_compression/pytorch_yolov5/post_quant.py
index 8c86672761829d6541a6d3c827f5254d0eecc527..a5316d292970510598a1537104a32dcbf06f924d 100644
--- a/example/auto_compression/pytorch_yolov5/post_quant.py
+++ b/example/auto_compression/pytorch_yolov5/post_quant.py
@@ -22,6 +22,7 @@ from ppdet.core.workspace import create
 from ppdet.metrics import COCOMetric, VOCMetric
 from paddleslim.auto_compression.config_helpers import load_config as load_slim_config
 from paddleslim.quant import quant_post_static
+from paddleslim.common import load_onnx_model
 
 
 def argsparser():
@@ -77,20 +78,23 @@ def main():
 
     place = paddle.CUDAPlace(0) if FLAGS.devices == 'gpu' else paddle.CPUPlace()
     exe = paddle.static.Executor(place)
+    load_onnx_model(global_config["model_dir"])
+    inference_model_path = global_config["model_dir"].rstrip().rstrip(
+        '.onnx') + '_infer'
     quant_post_static(
         executor=exe,
-        model_dir=global_config["model_dir"],
+        model_dir=inference_model_path,
         quantize_model_path=FLAGS.save_dir,
         data_loader=train_loader,
-        model_filename=global_config["model_filename"],
-        params_filename=global_config["params_filename"],
+        model_filename='model.pdmodel',
+        params_filename='model.pdiparams',
         batch_size=32,
         batch_nums=10,
         algo=FLAGS.algo,
         hist_percent=0.999,
         is_full_quantize=False,
         bias_correction=False,
-        onnx_format=False)
+        onnx_format=True)
 
 
 if __name__ == '__main__':
diff --git a/example/auto_compression/pytorch_yolov5/run.py b/example/auto_compression/pytorch_yolov5/run.py
index 965a546f1d7c519130dfef4b0b3de3f2ac8d68cd..bd36e25e9a36f1a419c10be0069b84b4536e90f2 100644
--- a/example/auto_compression/pytorch_yolov5/run.py
+++ b/example/auto_compression/pytorch_yolov5/run.py
@@ -159,11 +159,9 @@ def main():
 
     ac = AutoCompression(
         model_dir=global_config["model_dir"],
-        model_filename=global_config["model_filename"],
-        params_filename=global_config["params_filename"],
+        train_dataloader=train_loader,
         save_dir=FLAGS.save_dir,
         config=all_config,
-        train_dataloader=train_loader,
         eval_callback=eval_func)
     ac.compress()
 
diff --git a/example/auto_compression/pytorch_yolov6/README.md b/example/auto_compression/pytorch_yolov6/README.md
index acb43c36e4d6f79c3e360eb2df21366079079f0c..f841a0207764eb1fbe8b93f1a126e5a7c0547227 100644
--- a/example/auto_compression/pytorch_yolov6/README.md
+++ b/example/auto_compression/pytorch_yolov6/README.md
@@ -22,7 +22,7 @@
 
 | 模型  |  策略  | 输入尺寸 | mAP<sup>val<br>0.5:0.95 | 预测时延<sup><small>FP32</small><sup><br><sup>(ms) |预测时延<sup><small>FP16</small><sup><br><sup>(ms) | 预测时延<sup><small>INT8</small><sup><br><sup>(ms) |  配置文件 | Inference模型  |
 | :-------- |:-------- |:--------: | :---------------------: | :----------------: | :----------------: | :---------------: | :-----------------------------: | :-----------------------------: |
-| YOLOv6s |  Base模型 | 640*640  |  42.4   |   9.06ms  |   2.90ms   |  -  |  - | [Model](https://bj.bcebos.com/v1/paddle-slim-models/act/yolov6s_infer.tar) |
+| YOLOv6s |  Base模型 | 640*640  |  42.4   |   9.06ms  |   2.90ms   |  -  |  - | [Model](https://paddle-slim-models.bj.bcebos.com/act/yolov6s.onnx) |
 | YOLOv6s |  KL离线量化 | 640*640  |  30.3   |   - |   -   |  1.83ms  |  - | - |
 | YOLOv6s |  量化蒸馏训练 | 640*640  |  **41.3**   |   - |   -   |  **1.83ms**  |  [config](./configs/yolov6s_qat_dis.yaml) | [Infer Model](https://bj.bcebos.com/v1/paddle-slim-models/act/yolov6s_quant.tar) &#124; [ONNX Model](https://bj.bcebos.com/v1/paddle-slim-models/act/yolov6s_quant.onnx) |
 
@@ -36,7 +36,6 @@
 - PaddlePaddle >= 2.3 （可从[Paddle官网](https://www.paddlepaddle.org.cn/install/quick?docurl=/documentation/docs/zh/install/pip/linux-pip.html)下载安装）
 - PaddleSlim > 2.3版本
 - PaddleDet >= 2.4
-- [X2Paddle](https://github.com/PaddlePaddle/X2Paddle) >= 1.3.6
 - opencv-python
 
 （1）安装paddlepaddle：
@@ -59,10 +58,6 @@ pip install paddledet
 
 注：安装PaddleDet的目的只是为了直接使用PaddleDetection中的Dataloader组件。
 
-（4）安装X2Paddle的1.3.6以上版本：
-```shell
-pip install x2paddle sympy onnx
-```
 
 #### 3.2 准备数据集
 
@@ -78,17 +73,6 @@ pip install x2paddle sympy onnx
 可通过[meituan/YOLOv6](https://github.com/meituan/YOLOv6)官方的[导出教程](https://github.com/meituan/YOLOv6/blob/main/deploy/ONNX/README.md)来准备ONNX模型。也可以下载已经准备好的[yolov6s.onnx](https://paddle-slim-models.bj.bcebos.com/act/yolov6s.onnx)。
 
 
-(2) 转换模型：
-```
-x2paddle --framework=onnx --model=yolov6s.onnx --save_dir=pd_model
-cp -r pd_model/inference_model/ yolov6s_infer
-```
-即可得到YOLOv6s模型的预测模型（`model.pdmodel` 和 `model.pdiparams`）。如想快速体验，可直接下载上方表格中YOLOv6s的[Paddle预测模型](https://bj.bcebos.com/v1/paddle-slim-models/act/yolov6s_infer.tar)。
-
-
-预测模型的格式为：`model.pdmodel` 和 `model.pdiparams`两个，带`pdmodel`的是模型文件，带`pdiparams`后缀的是权重文件。
-
-
 #### 3.4 自动压缩并产出模型
 
 蒸馏量化自动压缩示例通过run.py脚本启动，会使用接口```paddleslim.auto_compression.AutoCompression```对模型进行自动压缩。配置config文件中模型路径、蒸馏、量化、和训练等部分的参数，配置完成后便可对模型进行量化和蒸馏。具体运行命令为：
diff --git a/example/auto_compression/pytorch_yolov6/configs/yolov6s_qat_dis.yaml b/example/auto_compression/pytorch_yolov6/configs/yolov6s_qat_dis.yaml
index 7bbd33248db94393a304c5b52c274f36447c3ab2..7e56f81c2f47e7e2d2a12ab32350e8ebe3fa23dc 100644
--- a/example/auto_compression/pytorch_yolov6/configs/yolov6s_qat_dis.yaml
+++ b/example/auto_compression/pytorch_yolov6/configs/yolov6s_qat_dis.yaml
@@ -4,9 +4,7 @@ Global:
   input_list: {'image': 'x2paddle_image_arrays'}
   Evaluation: True
   arch: 'YOLOv6'
-  model_dir: ./yolov6s_infer
-  model_filename: model.pdmodel
-  params_filename: model.pdiparams
+  model_dir: ./yolov6s.onnx
 
 Distillation:
   alpha: 1.0
diff --git a/example/auto_compression/pytorch_yolov6/eval.py b/example/auto_compression/pytorch_yolov6/eval.py
index 62127b512baef72e4105cec2ad6e2d4e1e6a6cbc..cadc28aa50f4cd0883492766e75eebecd5d8e4ea 100644
--- a/example/auto_compression/pytorch_yolov6/eval.py
+++ b/example/auto_compression/pytorch_yolov6/eval.py
@@ -21,7 +21,7 @@ from ppdet.core.workspace import load_config, merge_config
 from ppdet.core.workspace import create
 from ppdet.metrics import COCOMetric, VOCMetric
 from paddleslim.auto_compression.config_helpers import load_config as load_slim_config
-
+from paddleslim.common import load_onnx_model
 from post_process import YOLOv6PostProcess
 
 
@@ -77,12 +77,8 @@ def eval():
     place = paddle.CUDAPlace(0) if FLAGS.devices == 'gpu' else paddle.CPUPlace()
     exe = paddle.static.Executor(place)
 
-    val_program, feed_target_names, fetch_targets = paddle.static.load_inference_model(
-        global_config["model_dir"],
-        exe,
-        model_filename=global_config["model_filename"],
-        params_filename=global_config["params_filename"])
-    print('Loaded model from: {}'.format(global_config["model_dir"]))
+    val_program, feed_target_names, fetch_targets = load_onnx_model(
+        global_config["model_dir"])
 
     metric = global_config['metric']
     for batch_id, data in enumerate(val_loader):
diff --git a/example/auto_compression/pytorch_yolov6/post_quant.py b/example/auto_compression/pytorch_yolov6/post_quant.py
index aa4f5d8f67ef6e264a2b1c81bffc5b0e1bbeb0bb..a5316d292970510598a1537104a32dcbf06f924d 100644
--- a/example/auto_compression/pytorch_yolov6/post_quant.py
+++ b/example/auto_compression/pytorch_yolov6/post_quant.py
@@ -22,8 +22,7 @@ from ppdet.core.workspace import create
 from ppdet.metrics import COCOMetric, VOCMetric
 from paddleslim.auto_compression.config_helpers import load_config as load_slim_config
 from paddleslim.quant import quant_post_static
-
-from post_process import YOLOv6PostProcess
+from paddleslim.common import load_onnx_model
 
 
 def argsparser():
@@ -79,20 +78,23 @@ def main():
 
     place = paddle.CUDAPlace(0) if FLAGS.devices == 'gpu' else paddle.CPUPlace()
     exe = paddle.static.Executor(place)
+    load_onnx_model(global_config["model_dir"])
+    inference_model_path = global_config["model_dir"].rstrip().rstrip(
+        '.onnx') + '_infer'
     quant_post_static(
         executor=exe,
-        model_dir=global_config["model_dir"],
+        model_dir=inference_model_path,
         quantize_model_path=FLAGS.save_dir,
         data_loader=train_loader,
-        model_filename=global_config["model_filename"],
-        params_filename=global_config["params_filename"],
+        model_filename='model.pdmodel',
+        params_filename='model.pdiparams',
         batch_size=32,
         batch_nums=10,
         algo=FLAGS.algo,
         hist_percent=0.999,
         is_full_quantize=False,
         bias_correction=False,
-        onnx_format=False)
+        onnx_format=True)
 
 
 if __name__ == '__main__':
diff --git a/example/auto_compression/pytorch_yolov6/run.py b/example/auto_compression/pytorch_yolov6/run.py
index 05fe7fddad3568c98bd2e3b8bbf7dcb3552a300a..4db9af11d4f8f38fd5cfa872b2cad4ab1941ec83 100644
--- a/example/auto_compression/pytorch_yolov6/run.py
+++ b/example/auto_compression/pytorch_yolov6/run.py
@@ -161,11 +161,9 @@ def main():
 
     ac = AutoCompression(
         model_dir=global_config["model_dir"],
-        model_filename=global_config["model_filename"],
-        params_filename=global_config["params_filename"],
+        train_dataloader=train_loader,
         save_dir=FLAGS.save_dir,
         config=all_config,
-        train_dataloader=train_loader,
         eval_callback=eval_func)
     ac.compress()
 
diff --git a/example/auto_compression/pytorch_yolov7/README.md b/example/auto_compression/pytorch_yolov7/README.md
index 7306391f74b7302c0ac55804a8885d2edb831a8a..768a99eb57c090df377634d171b779809a56a0af 100644
--- a/example/auto_compression/pytorch_yolov7/README.md
+++ b/example/auto_compression/pytorch_yolov7/README.md
@@ -22,7 +22,7 @@
 
 | 模型  |  策略  | 输入尺寸 | mAP<sup>val<br>0.5:0.95 | 预测时延<sup><small>FP32</small><sup><br><sup>(ms) |预测时延<sup><small>FP16</small><sup><br><sup>(ms) | 预测时延<sup><small>INT8</small><sup><br><sup>(ms) |  配置文件 | Inference模型  |
 | :-------- |:-------- |:--------: | :---------------------: | :----------------: | :----------------: | :---------------: | :-----------------------------: | :-----------------------------: |
-| YOLOv7 |  Base模型 | 640*640  |  51.1   |   26.84ms  |   7.44ms   |  -  |  - | [Model](https://bj.bcebos.com/v1/paddle-slim-models/act/yolov7_infer.tar) |
+| YOLOv7 |  Base模型 | 640*640  |  51.1   |   26.84ms  |   7.44ms   |  -  |  - | [Model](https://paddle-slim-models.bj.bcebos.com/act/yolov7.onnx) |
 | YOLOv7 |  KL离线量化 | 640*640  |  50.2   |   - |   -   |  4.55ms  |  - | - |
 | YOLOv7 |  量化蒸馏训练 | 640*640  |  **50.8**   |   - |   -   |  **4.55ms**  |  [config](./configs/yolov7_qat_dis.yaml) | [Infer Model](https://bj.bcebos.com/v1/paddle-slim-models/act/yolov7_quant.tar) &#124; [ONNX Model](https://bj.bcebos.com/v1/paddle-slim-models/act/yolov7_quant.onnx) |
 
@@ -36,7 +36,6 @@
 - PaddlePaddle >= 2.3 （可从[Paddle官网](https://www.paddlepaddle.org.cn/install/quick?docurl=/documentation/docs/zh/install/pip/linux-pip.html)下载安装）
 - PaddleSlim > 2.3版本
 - PaddleDet >= 2.4
-- [X2Paddle](https://github.com/PaddlePaddle/X2Paddle) >= 1.3.6
 - opencv-python
 
 （1）安装paddlepaddle：
@@ -59,10 +58,6 @@ pip install paddledet
 
 注：安装PaddleDet的目的只是为了直接使用PaddleDetection中的Dataloader组件。
 
-（4）安装X2Paddle的1.3.6以上版本：
-```shell
-pip install x2paddle sympy onnx
-```
 
 #### 3.2 准备数据集
 
@@ -86,18 +81,6 @@ python export.py --weights yolov7.pt --include onnx
 
 也可以直接下载我们已经准备好的[yolov7.onnx](https://paddle-slim-models.bj.bcebos.com/act/yolov7.onnx)。
 
-
-(2) 转换模型：
-```
-x2paddle --framework=onnx --model=yolov7.onnx --save_dir=pd_model
-cp -r pd_model/inference_model/ yolov7_infer
-```
-即可得到YOLOv7模型的预测模型（`model.pdmodel` 和 `model.pdiparams`）。如想快速体验，可直接下载上方表格中YOLOv7的[Paddle预测模型](https://bj.bcebos.com/v1/paddle-slim-models/act/yolov7_infer.tar)。
-
-
-预测模型的格式为：`model.pdmodel` 和 `model.pdiparams`两个，带`pdmodel`的是模型文件，带`pdiparams`后缀的是权重文件。
-
-
 #### 3.4 自动压缩并产出模型
 
 蒸馏量化自动压缩示例通过run.py脚本启动，会使用接口```paddleslim.auto_compression.AutoCompression```对模型进行自动压缩。配置config文件中模型路径、蒸馏、量化、和训练等部分的参数，配置完成后便可对模型进行量化和蒸馏。具体运行命令为：
diff --git a/example/auto_compression/pytorch_yolov7/configs/yolov7_qat_dis.yaml b/example/auto_compression/pytorch_yolov7/configs/yolov7_qat_dis.yaml
index fb3a5069cdc6d4f7147b8b9ca6e68c76b546bdb9..ce1edd3f8879e7aff4a45109d1f152e0fad235ec 100644
--- a/example/auto_compression/pytorch_yolov7/configs/yolov7_qat_dis.yaml
+++ b/example/auto_compression/pytorch_yolov7/configs/yolov7_qat_dis.yaml
@@ -3,9 +3,7 @@ Global:
   reader_config: configs/yolov7_reader.yaml
   input_list: {'image': 'x2paddle_images'}
   Evaluation: True
-  model_dir: ./yolov7_infer
-  model_filename: model.pdmodel
-  params_filename: model.pdiparams
+  model_dir: ./yolov7.onnx
 
 Distillation:
   alpha: 1.0
diff --git a/example/auto_compression/pytorch_yolov7/eval.py b/example/auto_compression/pytorch_yolov7/eval.py
index 478c4e1abd50dc4a1f0697f665005bdfb1bc2b5d..519775bca6f7eb018f9e46e51a01d2416936b62f 100644
--- a/example/auto_compression/pytorch_yolov7/eval.py
+++ b/example/auto_compression/pytorch_yolov7/eval.py
@@ -21,7 +21,7 @@ from ppdet.core.workspace import load_config, merge_config
 from ppdet.core.workspace import create
 from ppdet.metrics import COCOMetric, VOCMetric
 from paddleslim.auto_compression.config_helpers import load_config as load_slim_config
-
+from paddleslim.common import load_onnx_model
 from post_process import YOLOv7PostProcess
 
 
@@ -77,12 +77,8 @@ def eval():
     place = paddle.CUDAPlace(0) if FLAGS.devices == 'gpu' else paddle.CPUPlace()
     exe = paddle.static.Executor(place)
 
-    val_program, feed_target_names, fetch_targets = paddle.static.load_inference_model(
-        global_config["model_dir"],
-        exe,
-        model_filename=global_config["model_filename"],
-        params_filename=global_config["params_filename"])
-    print('Loaded model from: {}'.format(global_config["model_dir"]))
+    val_program, feed_target_names, fetch_targets = load_onnx_model(
+        global_config["model_dir"])
 
     metric = global_config['metric']
     for batch_id, data in enumerate(val_loader):
diff --git a/example/auto_compression/pytorch_yolov7/post_quant.py b/example/auto_compression/pytorch_yolov7/post_quant.py
index 8c86672761829d6541a6d3c827f5254d0eecc527..a5316d292970510598a1537104a32dcbf06f924d 100644
--- a/example/auto_compression/pytorch_yolov7/post_quant.py
+++ b/example/auto_compression/pytorch_yolov7/post_quant.py
@@ -22,6 +22,7 @@ from ppdet.core.workspace import create
 from ppdet.metrics import COCOMetric, VOCMetric
 from paddleslim.auto_compression.config_helpers import load_config as load_slim_config
 from paddleslim.quant import quant_post_static
+from paddleslim.common import load_onnx_model
 
 
 def argsparser():
@@ -77,20 +78,23 @@ def main():
 
     place = paddle.CUDAPlace(0) if FLAGS.devices == 'gpu' else paddle.CPUPlace()
     exe = paddle.static.Executor(place)
+    load_onnx_model(global_config["model_dir"])
+    inference_model_path = global_config["model_dir"].rstrip().rstrip(
+        '.onnx') + '_infer'
     quant_post_static(
         executor=exe,
-        model_dir=global_config["model_dir"],
+        model_dir=inference_model_path,
         quantize_model_path=FLAGS.save_dir,
         data_loader=train_loader,
-        model_filename=global_config["model_filename"],
-        params_filename=global_config["params_filename"],
+        model_filename='model.pdmodel',
+        params_filename='model.pdiparams',
         batch_size=32,
         batch_nums=10,
         algo=FLAGS.algo,
         hist_percent=0.999,
         is_full_quantize=False,
         bias_correction=False,
-        onnx_format=False)
+        onnx_format=True)
 
 
 if __name__ == '__main__':
diff --git a/example/auto_compression/pytorch_yolov7/run.py b/example/auto_compression/pytorch_yolov7/run.py
index ed73d81aaea20a37ad922d880fecd75f815337ce..5120ed9b6ea13d8e98ef50a42e9e907693f7bd2a 100644
--- a/example/auto_compression/pytorch_yolov7/run.py
+++ b/example/auto_compression/pytorch_yolov7/run.py
@@ -152,11 +152,9 @@ def main():
 
     ac = AutoCompression(
         model_dir=global_config["model_dir"],
-        model_filename=global_config["model_filename"],
-        params_filename=global_config["params_filename"],
+        train_dataloader=train_loader,
         save_dir=FLAGS.save_dir,
         config=all_config,
-        train_dataloader=train_loader,
         eval_callback=eval_func)
     ac.compress()
 
diff --git a/paddleslim/auto_compression/compressor.py b/paddleslim/auto_compression/compressor.py
index 5587e92d4ab6bba057251fdf3389a5ea13025309..27fbead1828f20118e2f443b9ccdad9e0f05b148 100644
--- a/paddleslim/auto_compression/compressor.py
+++ b/paddleslim/auto_compression/compressor.py
@@ -35,7 +35,7 @@ from .strategy_config import TrainConfig, ProgramInfo, merge_config
 from .auto_strategy import prepare_strategy, get_final_quant_config, create_strategy_config, create_train_config
 from .config_helpers import load_config, extract_strategy_config, extract_train_config
 from .utils.predict import with_variable_shape
-from .utils import get_feed_vars, wrap_dataloader, load_inference_model
+from .utils import get_feed_vars, wrap_dataloader, load_inference_model, get_model_dir
 
 _logger = get_logger(__name__, level=logging.INFO)
 
@@ -49,10 +49,10 @@ except Exception as e:
 class AutoCompression:
     def __init__(self,
                  model_dir,
-                 model_filename,
-                 params_filename,
-                 save_dir,
                  train_dataloader,
+                 model_filename=None,
+                 params_filename=None,
+                 save_dir='./output',
                  config=None,
                  input_shapes=None,
                  target_speedup=None,
@@ -66,13 +66,13 @@ class AutoCompression:
             model_dir(str): The path of inference model that will be compressed, and
                 the model and params that saved by ``paddle.static.save_inference_model``
                 are under the path.
+            train_data_loader(Python Generator, Paddle.io.DataLoader): The
+                Generator or Dataloader provides train data, and it could
+                return a batch every time.
             model_filename(str):  The name of model file. 
             params_filename(str): The name of params file.
             save_dir(str): The path to save compressed model. The models in this directory will be overwrited
                 after calling 'compress()' function.
-            train_data_loader(Python Generator, Paddle.io.DataLoader): The
-                Generator or Dataloader provides train data, and it could
-                return a batch every time.
             input_shapes(dict|tuple|list): It is used when the model has implicit dimensions except batch size. 
                 If it is a dict, the key is the name of input and the value is the shape. 
                 Given the input shape of input "X" is [-1, 3, -1, -1] which means the batch size, hight
@@ -117,18 +117,8 @@ class AutoCompression:
             deploy_hardware(str, optional): The hardware you want to deploy. Default: 'gpu'.
         """
         self.model_dir = model_dir.rstrip('/')
-
-        if model_filename == 'None':
-            model_filename = None
-        self.model_filename = model_filename
-        if params_filename == 'None':
-            params_filename = None
-        self.params_filename = params_filename
-
-        if params_filename is None and model_filename is not None:
-            raise NotImplementedError(
-                "NOT SUPPORT parameters saved in separate files. Please convert it to single binary file first."
-            )
+        self.updated_model_dir, self.model_filename, self.params_filename = get_model_dir(
+            model_dir, model_filename, params_filename)
 
         self.final_dir = save_dir
         if not os.path.exists(self.final_dir):
@@ -163,8 +153,7 @@ class AutoCompression:
 
         paddle.enable_static()
         self._exe, self._places = self._prepare_envs()
-        self.model_type = self._get_model_type(self._exe, self.model_dir,
-                                               model_filename, params_filename)
+        self.model_type = self._get_model_type()
 
         if self.train_config is not None and self.train_config.use_fleet:
             fleet.init(is_collective=True)
@@ -249,8 +238,8 @@ class AutoCompression:
         paddle.enable_static()
         exe = paddle.static.Executor(paddle.CPUPlace())
         [inference_program, feed_target_names,
-         fetch_targets] = (load_inference_model(model_dir, exe, model_filename,
-                                                params_filename))
+         fetch_targets] = load_inference_model(model_dir, exe, model_filename,
+                                               params_filename)
 
         if type(input_shapes) in [list, tuple]:
             assert len(
@@ -310,23 +299,26 @@ class AutoCompression:
         exe = paddle.static.Executor(places)
         return exe, places
 
-    def _get_model_type(self, exe, model_dir, model_filename, params_filename):
-        [inference_program, _, _]= (load_inference_model( \
-            model_dir, \
-            model_filename=model_filename, params_filename=params_filename,
-            executor=exe))
+    def _get_model_type(self):
+        [inference_program, _, _] = (load_inference_model(
+            self.model_dir,
+            model_filename=self.model_filename,
+            params_filename=self.params_filename,
+            executor=self._exe))
         _, _, model_type = get_patterns(inference_program)
         if self.model_filename is None:
-            new_model_filename = '__new_model__'
+            opt_model_filename = '__opt_model__'
         else:
-            new_model_filename = 'new_' + self.model_filename
+            opt_model_filename = 'opt_' + self.model_filename
         program_bytes = inference_program._remove_training_info(
             clip_extra=False).desc.serialize_to_string()
-        with open(os.path.join(self.model_dir, new_model_filename), "wb") as f:
+        with open(
+                os.path.join(self.updated_model_dir, opt_model_filename),
+                "wb") as f:
             f.write(program_bytes)
         shutil.move(
-            os.path.join(self.model_dir, new_model_filename),
-            os.path.join(self.model_dir, self.model_filename))
+            os.path.join(self.updated_model_dir, opt_model_filename),
+            os.path.join(self.updated_model_dir, self.model_filename))
         _logger.info(f"Detect model type: {model_type}")
         return model_type
 
@@ -603,10 +595,16 @@ class AutoCompression:
                                  train_config):
         # start compress, including train/eval model
         # TODO: add the emd loss of evaluation model.
+        # If model is ONNX, convert it to inference model firstly.
+        load_inference_model(
+            self.model_dir,
+            model_filename=self.model_filename,
+            params_filename=self.params_filename,
+            executor=self._exe)
         if strategy == 'quant_post':
             quant_post(
                 self._exe,
-                model_dir=self.model_dir,
+                model_dir=self.updated_model_dir,
                 quantize_model_path=os.path.join(
                     self.tmp_dir, 'strategy_{}'.format(str(strategy_idx + 1))),
                 data_loader=self.train_dataloader,
@@ -632,11 +630,16 @@ class AutoCompression:
             if platform.system().lower() != 'linux':
                 raise NotImplementedError(
                     "post-quant-hpo is not support in system other than linux")
-
+            # If model is ONNX, convert it to inference model firstly.
+            load_inference_model(
+                self.model_dir,
+                model_filename=self.model_filename,
+                params_filename=self.params_filename,
+                executor=self._exe)
             post_quant_hpo.quant_post_hpo(
                 self._exe,
                 self._places,
-                model_dir=self.model_dir,
+                model_dir=self.updated_model_dir,
                 quantize_model_path=os.path.join(
                     self.tmp_dir, 'strategy_{}'.format(str(strategy_idx + 1))),
                 train_dataloader=self.train_dataloader,
diff --git a/paddleslim/auto_compression/utils/dataloader.py b/paddleslim/auto_compression/utils/dataloader.py
index f0f36716c14ba0ee99566ffb7e73f8e60838f0b0..31e375de2feee66ff88e44f66f7be8183fa4916a 100644
--- a/paddleslim/auto_compression/utils/dataloader.py
+++ b/paddleslim/auto_compression/utils/dataloader.py
@@ -3,6 +3,7 @@ import time
 import numpy as np
 import paddle
 from collections.abc import Iterable
+from .load_model import load_inference_model
 
 __all__ = ["wrap_dataloader", "get_feed_vars"]
 
@@ -13,7 +14,7 @@ def get_feed_vars(model_dir, model_filename, params_filename):
     paddle.enable_static()
     exe = paddle.static.Executor(paddle.CPUPlace())
     [inference_program, feed_target_names, fetch_targets] = (
-        paddle.static.load_inference_model(
+        load_inference_model(
             model_dir,
             exe,
             model_filename=model_filename,
diff --git a/paddleslim/auto_compression/utils/load_model.py b/paddleslim/auto_compression/utils/load_model.py
index bb61ab5626eca704e3becbf67a2c3711624b283b..637e808ace099b70a210e3ead7f7cd285a8c46ad 100644
--- a/paddleslim/auto_compression/utils/load_model.py
+++ b/paddleslim/auto_compression/utils/load_model.py
@@ -14,15 +14,37 @@
 
 import os
 import paddle
+from ...common import load_onnx_model
 
-__all__ = ['load_inference_model']
+__all__ = ['load_inference_model', 'get_model_dir']
 
 
 def load_inference_model(path_prefix,
                          executor,
                          model_filename=None,
                          params_filename=None):
-    if model_filename is not None and params_filename is not None:
+    # Load onnx model to Inference model.
+    if path_prefix.endswith('.onnx'):
+        inference_program, feed_target_names, fetch_targets = load_onnx_model(
+            path_prefix)
+        return [inference_program, feed_target_names, fetch_targets]
+    # Load Inference model.
+    # TODO: clean code
+    if model_filename is not None and model_filename.endswith('.pdmodel'):
+        model_name = '.'.join(model_filename.split('.')[:-1])
+        assert os.path.exists(
+            os.path.join(path_prefix, model_name + '.pdmodel')
+        ), 'Please check {}, or fix model_filename parameter.'.format(
+            os.path.join(path_prefix, model_name + '.pdmodel'))
+        assert os.path.exists(
+            os.path.join(path_prefix, model_name + '.pdiparams')
+        ), 'Please check {}, or fix params_filename parameter.'.format(
+            os.path.join(path_prefix, model_name + '.pdiparams'))
+        model_path_prefix = os.path.join(path_prefix, model_name)
+        [inference_program, feed_target_names, fetch_targets] = (
+            paddle.static.load_inference_model(
+                path_prefix=model_path_prefix, executor=executor))
+    elif model_filename is not None and params_filename is not None:
         [inference_program, feed_target_names, fetch_targets] = (
             paddle.static.load_inference_model(
                 path_prefix=path_prefix,
@@ -43,3 +65,26 @@ def load_inference_model(path_prefix,
                     path_prefix=path_prefix, executor=executor))
 
     return [inference_program, feed_target_names, fetch_targets]
+
+
+def get_model_dir(model_dir, model_filename, params_filename):
+    if model_dir.endswith('.onnx'):
+        updated_model_dir = model_dir.rstrip().rstrip('.onnx') + '_infer'
+    else:
+        updated_model_dir = model_dir.rstrip('/')
+
+    if model_filename == None:
+        updated_model_filename = 'model.pdmodel'
+    else:
+        updated_model_filename = model_filename
+
+    if params_filename == None:
+        updated_params_filename = 'model.pdiparams'
+    else:
+        updated_params_filename = params_filename
+
+    if params_filename is None and model_filename is not None:
+        raise NotImplementedError(
+            "NOT SUPPORT parameters saved in separate files. Please convert it to single binary file first."
+        )
+    return updated_model_dir, updated_model_filename, updated_params_filename
diff --git a/paddleslim/common/__init__.py b/paddleslim/common/__init__.py
index c3e40415b76205681fd69ce4a814e69a382d9b6c..e866790d7fa1be1a4d9ad44ba3aee63c37d7859b 100644
--- a/paddleslim/common/__init__.py
+++ b/paddleslim/common/__init__.py
@@ -25,11 +25,12 @@ from .analyze_helper import VarCollector
 from . import wrapper_function
 from . import recover_program
 from . import patterns
+from .convert_model import load_onnx_model
 
 __all__ = [
     'EvolutionaryController', 'SAController', 'get_logger', 'ControllerServer',
     'ControllerClient', 'lock', 'unlock', 'cached_reader', 'AvgrageMeter',
-    'Server', 'Client', 'RLBaseController', 'VarCollector'
+    'Server', 'Client', 'RLBaseController', 'VarCollector', 'load_onnx_model'
 ]
 
 __all__ += wrapper_function.__all__
diff --git a/paddleslim/common/convert_model.py b/paddleslim/common/convert_model.py
new file mode 100644
index 0000000000000000000000000000000000000000..1b501269a6fbeb406badc48f07a834eafe0aaf47
--- /dev/null
+++ b/paddleslim/common/convert_model.py
@@ -0,0 +1,102 @@
+#   Copyright (c) 2022 PaddlePaddle Authors. All Rights Reserve.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+import time
+import logging
+import os
+import shutil
+import sys
+
+import paddle
+from x2paddle.decoder.onnx_decoder import ONNXDecoder
+from x2paddle.op_mapper.onnx2paddle.onnx_op_mapper import ONNXOpMapper
+from x2paddle.optimizer.optimizer import GraphOptimizer
+from x2paddle.utils import ConverterCheck
+
+from . import get_logger
+_logger = get_logger(__name__, level=logging.INFO)
+
+__all__ = ['load_onnx_model']
+
+
+def load_onnx_model(model_path, disable_feedback=False):
+    assert model_path.endswith(
+        '.onnx'
+    ), '{} does not end with .onnx suffix and cannot be loaded.'.format(
+        model_path)
+    inference_model_path = model_path.rstrip().rstrip('.onnx') + '_infer'
+    exe = paddle.static.Executor(paddle.CPUPlace())
+    if os.path.exists(os.path.join(
+            inference_model_path, 'model.pdmodel')) and os.path.exists(
+                os.path.join(inference_model_path, 'model.pdiparams')):
+        val_program, feed_target_names, fetch_targets = paddle.static.load_inference_model(
+            os.path.join(inference_model_path, 'model'), exe)
+        _logger.info('Loaded model from: {}'.format(inference_model_path))
+        return val_program, feed_target_names, fetch_targets
+    else:
+        # onnx to paddle inference model.
+        time_info = int(time.time())
+        if not disable_feedback:
+            ConverterCheck(
+                task="ONNX", time_info=time_info, convert_state="Start").start()
+        # check onnx installation and version
+        try:
+            import onnx
+            version = onnx.version.version
+            v0, v1, v2 = version.split('.')
+            version_sum = int(v0) * 100 + int(v1) * 10 + int(v2)
+            if version_sum < 160:
+                _logger.info("[ERROR] onnx>=1.6.0 is required")
+                sys.exit(1)
+        except:
+            _logger.info(
+                "[ERROR] onnx is not installed, use \"pip install onnx==1.6.0\"."
+            )
+            sys.exit(1)
+
+        try:
+            _logger.info("Now translating model from onnx to paddle.")
+            model = ONNXDecoder(model_path)
+            mapper = ONNXOpMapper(model)
+            mapper.paddle_graph.build()
+            graph_opt = GraphOptimizer(source_frame="onnx")
+            graph_opt.optimize(mapper.paddle_graph)
+            _logger.info("Model optimized.")
+            onnx2paddle_out_dir = os.path.join(inference_model_path,
+                                               'onnx2paddle')
+            mapper.paddle_graph.gen_model(onnx2paddle_out_dir)
+            _logger.info("Successfully exported Paddle static graph model!")
+            if not disable_feedback:
+                ConverterCheck(
+                    task="ONNX", time_info=time_info,
+                    convert_state="Success").start()
+            shutil.move(
+                os.path.join(onnx2paddle_out_dir, 'inference_model',
+                             'model.pdmodel'),
+                os.path.join(inference_model_path, 'model.pdmodel'))
+            shutil.move(
+                os.path.join(onnx2paddle_out_dir, 'inference_model',
+                             'model.pdiparams'),
+                os.path.join(inference_model_path, 'model.pdiparams'))
+        except:
+            _logger.info(
+                "[ERROR] x2paddle threw an exception, you can ask for help at: https://github.com/PaddlePaddle/X2Paddle/issues"
+            )
+            sys.exit(1)
+
+        paddle.enable_static()
+        val_program, feed_target_names, fetch_targets = paddle.static.load_inference_model(
+            os.path.join(inference_model_path, 'model'), exe)
+        _logger.info('Loaded model from: {}'.format(inference_model_path))
+        return val_program, feed_target_names, fetch_targets
diff --git a/requirements.txt b/requirements.txt
index 8ed081bad22e9e2609fd2fb94f72b4cd7e2ef81a..488d1d914bf079eb713f45ad5d2626771c7d27f0 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,4 +1,3 @@
-#paddlepaddle == 1.6.0rc0
 tqdm
 pyzmq
 matplotlib
@@ -6,3 +5,5 @@ pillow
 pyyaml
 scikit-learn
 smac
+onnx
+x2paddle==1.3.8
diff --git a/tests/act/test_act_api.py b/tests/act/test_act_api.py
index ec73d46e36b4376675958257648f587e45de7aa6..aa50bb2b21cdf42995356ef3dd6ae36adb2dff36 100644
--- a/tests/act/test_act_api.py
+++ b/tests/act/test_act_api.py
@@ -9,6 +9,7 @@ import numpy as np
 from paddle.io import Dataset
 from paddleslim.auto_compression import AutoCompression
 from paddleslim.auto_compression.config_helpers import load_config
+from paddleslim.auto_compression.utils.load_model import load_inference_model
 
 
 class RandomEvalDataset(Dataset):
@@ -120,5 +121,28 @@ class TestDictQATDist(ACTBase):
         ac.compress()
 
 
+class TestLoadONNXModel(ACTBase):
+    def __init__(self, *args, **kwargs):
+        super(TestLoadONNXModel, self).__init__(*args, **kwargs)
+        os.system(
+            'wget https://paddle-slim-models.bj.bcebos.com/act/yolov5s.onnx')
+        self.model_dir = 'yolov5s.onnx'
+
+    def test_compress(self):
+        place = paddle.CPUPlace()
+        exe = paddle.static.Executor(place)
+        _, _, _ = load_inference_model(
+            self.model_dir,
+            executor=exe,
+            model_filename='model.pdmodel',
+            params_filename='model.paiparams')
+        # reload model
+        _, _, _ = load_inference_model(
+            self.model_dir,
+            executor=exe,
+            model_filename='model.pdmodel',
+            params_filename='model.paiparams')
+
+
 if __name__ == '__main__':
     unittest.main()