diff --git a/README.md b/README.md
index d7192697de6eacc5e22ac704adf55fe38f48f60f..228334c500f5a9ec6eab87dc3306cfa5a5c444d6 100644
--- a/README.md
+++ b/README.md
@@ -12,7 +12,7 @@ paddlepaddle >= 1.5.0
 **以下依赖只需对应安装自己需要的即可**  
 转换tensorflow模型 ： tensorflow == 1.14.0  
 转换caffe模型 ： caffe == 1.0.0  
-
+转换onnx模型 ： onnx == 1.5.0  pytorch == 1.1.0
 ## 安装
 ```
 pip install x2paddle
@@ -32,8 +32,9 @@ x2paddle --framework=tensorflow --model=tf_model.pb --save_dir=pd_model
 x2paddle --framework=caffe --prototxt=deploy.proto --weight=deploy.caffemodel --save_dir=pd_model
 ```
 ### ONNX
-即将release，目前仍可使用[onnx2fluid](https://github.com/PaddlePaddle/X2Paddle/tree/release-0.3/onnx2fluid)
-
+```
+x2paddle --framework=onnx --model=onnx_model.onnx --save_dir=pd_model
+```
 ### 参数选项
 | 参数 | |
 |----------|--------------|
diff --git a/x2paddle/op_mapper/onnx_directly_map.py b/x2paddle/op_mapper/onnx_directly_map.py
index ab0551545baff19beadf553addf3a3ce4757f6da..75c2a842f8074761b6a1a4cbacd3248fb8254526 100644
--- a/x2paddle/op_mapper/onnx_directly_map.py
+++ b/x2paddle/op_mapper/onnx_directly_map.py
@@ -13,6 +13,7 @@
 # limitations under the License.
 
 from collections import OrderedDict as _dict
+import numpy as _np
 
 default_op_mapping_field_values = _dict()
 default_op_mapping_field_values['FLUID_OP'] = ''
@@ -30,6 +31,21 @@ default_op_mapping = {
     'Mul': ['elementwise_mul', ['X', 'Y'], ['Out'],
             dict(),
             dict(axis=-1)],
+    'Clip': [
+        'clip', ['X'], ['Out'],
+        dict(),
+        dict(
+            min=(_np.asarray([255, 255, 127, 255],
+                             dtype=_np.uint8).view(_np.float32)),
+            max=(_np.asarray([255, 255, 127, 127],
+                             dtype=_np.uint8).view(_np.float32)),
+        )
+    ],
+    'ReduceMean': [
+        'reduce_mean', ['X'], ['Out'],
+        dict(axes='dim', keepdims='keep_dim'),
+        dict(keep_dim=1)
+    ]
 }
 
 default_ioa_constraint = {
diff --git a/x2paddle/op_mapper/onnx_op_mapper.py b/x2paddle/op_mapper/onnx_op_mapper.py
index 2fc4ff15c3dee0e87c48de53a4f1f2529494d360..e15ec2191b28d9fce7b3e65965ae16a3561de73d 100644
--- a/x2paddle/op_mapper/onnx_op_mapper.py
+++ b/x2paddle/op_mapper/onnx_op_mapper.py
@@ -62,7 +62,7 @@ class ONNXOpMapper(OpMapper):
                 func = getattr(self, op)
                 func(node)
             elif op in default_op_mapping:
-                self._default(node)
+                self.directly_map(node)
 
     def op_checker(self):
         unsupported_ops = set()
@@ -80,7 +80,7 @@ class ONNXOpMapper(OpMapper):
                 print(op)
             return False
 
-    def _default(self, node, *args, name='', **kwargs):
+    def directly_map(self, node, *args, name='', **kwargs):
         inputs = node.layer.input
         outputs = node.layer.output
         op_type = node.layer_type
@@ -544,7 +544,7 @@ class ONNXOpMapper(OpMapper):
             "momentum": momentum,
             "epsilon": epsilon,
             "data_layout": string('NCHW'),
-            "is_test": 'True',
+            "is_test": True,
             "param_attr": string(val_scale.layer_name),
             "bias_attr": string(val_b.layer_name),
             "moving_mean_name": string(val_mean.layer_name),
diff --git a/x2paddle_model_zoo.md b/x2paddle_model_zoo.md
index 80d12d9fdc91ead399bc6c9da26d8be5929becfd..6aaf7499762dca1d44f1050b0b07767de7ca85d9 100644
--- a/x2paddle_model_zoo.md
+++ b/x2paddle_model_zoo.md
@@ -47,8 +47,12 @@
 ```
 import torch
 import torchvision
-dummy_input = torch.randn(1, 3, 224, 224) #根据不同模型调整shape
+
+#根据不同模型调整输入的shape
+dummy_input = torch.randn(1, 3, 224, 224)
 resnet18 = torchvision.models.resnet18(pretrained=True)
-torch.onnx.export(resnet18, dummy_input, "resnet18.onnx",verbose=True)#"resnet18.onnx"为onnx model的存储路径
+
+#"resnet18.onnx"为onnx model的存储路径
+torch.onnx.export(resnet18, dummy_input, "resnet18.onnx",verbose=True)
 
 ```