diff --git a/python/paddle/v2/fluid/clip.py b/python/paddle/v2/fluid/clip.py
index d8240dc1557f0866d954efc4af37d3f92e194fbc..f7917fc1423d89b2b08e9af5ee1f3047c78b9c8c 100644
--- a/python/paddle/v2/fluid/clip.py
+++ b/python/paddle/v2/fluid/clip.py
@@ -1,16 +1,16 @@
 #  Copyright (c) 2018 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
+# 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.
+# 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 functools
 import layers
 from framework import Variable
@@ -162,7 +162,7 @@ def append_gradient_clip_ops(param_grad):
     context = dict()
     create_op_callbacks = []
     for p, g in param_grad:
-        clip_attr = getattr(p, 'clip_attr', NullGradientClipAttr())
+        clip_attr = getattr(p, 'gradient_clip_attr', NullGradientClipAttr())
         if clip_attr is None:
             clip_attr = NullGradientClipAttr()
         if not isinstance(clip_attr, BaseGradientClipAttr):
diff --git a/python/paddle/v2/fluid/framework.py b/python/paddle/v2/fluid/framework.py
index 8042febfed7ed7db2f6d1507142b17079aa00fd8..9128a0eebeb258e616ffd1d0bdd12990dd1f7c88 100644
--- a/python/paddle/v2/fluid/framework.py
+++ b/python/paddle/v2/fluid/framework.py
@@ -946,7 +946,7 @@ class Parameter(Variable):
 
         self.regularizer = kwargs.get('regularizer', None)
 
-        self.clip_attr = kwargs.get('clip_attr', None)
+        self.gradient_clip_attr = kwargs.get('gradient_clip_attr', None)
 
 
 # program is a global instance.
diff --git a/python/paddle/v2/fluid/param_attr.py b/python/paddle/v2/fluid/param_attr.py
index 3af0190590e775d4816410e4dbe0069868ea209c..8c8de0d104664e320c764a47a256c09dbea9da94 100644
--- a/python/paddle/v2/fluid/param_attr.py
+++ b/python/paddle/v2/fluid/param_attr.py
@@ -1,16 +1,16 @@
 #  Copyright (c) 2018 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
+# 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.
+# 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.
 from initializer import Initializer, Xavier, Constant
 from regularizer import WeightDecayRegularizer
 
@@ -24,13 +24,13 @@ class ParamAttr(object):
                  learning_rate=1.0,
                  regularizer=None,
                  trainable=True,
-                 clip=None):
+                 gradient_clip=None):
         self.name = name
         self.initializer = initializer
         self.learning_rate = learning_rate
         self.regularizer = regularizer
         self.trainable = trainable
-        self.clip = clip
+        self.gradient_clip = gradient_clip
 
     def set_default_initializer(self, initializer):
         if initializer is None:
@@ -76,7 +76,7 @@ class ParamAttr(object):
             },
             'regularizer': self.regularizer,
             'trainable': self.trainable,
-            'clip_attr': self.clip
+            'gradient_clip_attr': self.gradient_clip
         }
         if with_initializer:
             kwargs['initializer'] = self.initializer
diff --git a/python/paddle/v2/fluid/tests/book/test_recognize_digits_mlp.py b/python/paddle/v2/fluid/tests/book/test_recognize_digits_mlp.py
index 02da2fcc8544d0f3ccfefa3c88af2f7297d1c76f..e614e5e3f134b2ec16ac5cfbff57177cbbdb5084 100644
--- a/python/paddle/v2/fluid/tests/book/test_recognize_digits_mlp.py
+++ b/python/paddle/v2/fluid/tests/book/test_recognize_digits_mlp.py
@@ -1,16 +1,16 @@
 #  Copyright (c) 2018 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
+# 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.
+# 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.
 from __future__ import print_function
 import numpy as np
 import paddle.v2 as paddle
@@ -26,7 +26,7 @@ hidden1 = fluid.layers.fc(input=image,
                           act='relu',
                           param_attr=fluid.ParamAttr(
                               regularizer=regularizer,
-                              clip=fluid.clip.ClipByValue(10)))
+                              gradient_clip=fluid.clip.ClipByValue(10)))
 
 hidden2 = fluid.layers.fc(input=hidden1,
                           size=64,