diff --git a/paddle/gserver/tests/sequence_recurrent_group.py b/paddle/gserver/tests/sequence_recurrent_group.py
index a1d54542e3bc4e89f70d31d5e89c0f44953c9f90..1343f2956f397e723dc258dc16725c47441be453 100644
--- a/paddle/gserver/tests/sequence_recurrent_group.py
+++ b/paddle/gserver/tests/sequence_recurrent_group.py
@@ -1,3 +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
+#
+#    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.
 #!/usr/bin/env python
 # Copyright (c) 2016 PaddlePaddle Authors. All Rights Reserved
 #
diff --git a/python/paddle/v2/fluid/tests/test_edit_distance_op.py b/python/paddle/v2/fluid/tests/test_edit_distance_op.py
index 38e87728b387bb70a8921a2fe73a4e69701aabe9..cf118df634bb8288456009ebd4954f08d5eb4323 100644
--- a/python/paddle/v2/fluid/tests/test_edit_distance_op.py
+++ b/python/paddle/v2/fluid/tests/test_edit_distance_op.py
@@ -1,3 +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
+#
+#    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 unittest
 import numpy as np
 from op_test import OpTest
diff --git a/python/paddle/v2/fluid/tests/test_elementwise_max_op.py b/python/paddle/v2/fluid/tests/test_elementwise_max_op.py
index 52bd123d8020d8d4572a1fbc0c03a4206604c5ef..3dfab4dd2fc82d470bacbb4b615bbb3b5d3e6230 100644
--- a/python/paddle/v2/fluid/tests/test_elementwise_max_op.py
+++ b/python/paddle/v2/fluid/tests/test_elementwise_max_op.py
@@ -1,3 +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
+#
+#    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 unittest
 import numpy as np
 from op_test import OpTest
diff --git a/python/paddle/v2/fluid/tests/test_elementwise_min_op.py b/python/paddle/v2/fluid/tests/test_elementwise_min_op.py
index eeafab5b188dbd14d572c2324c51364b2d436e8a..8422a9cdae70f2b88b9e86d5606b696509060865 100644
--- a/python/paddle/v2/fluid/tests/test_elementwise_min_op.py
+++ b/python/paddle/v2/fluid/tests/test_elementwise_min_op.py
@@ -1,3 +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
+#
+#    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 unittest
 import numpy as np
 from op_test import OpTest