diff --git a/elastic-ctr-cli/mlflow_listen.py b/elastic-ctr-cli/mlflow_listen.py
index 755ae3fc0ebd264af36fe4cd5bf6aa5c2cc3301a..19b51caf34393a109d7e5dd3561688b3687496bd 100644
--- a/elastic-ctr-cli/mlflow_listen.py
+++ b/elastic-ctr-cli/mlflow_listen.py
@@ -1,3 +1,17 @@
+#   Copyright (c) 2019 PaddlePaddle Authors. All Rights Reserved.
+#
+# 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 os
 
diff --git a/fleet-ctr/infer.py b/fleet-ctr/infer.py
index 16c16b483785be2a8498d1700cb96030d37646d6..0f21682116969c50b8c846f41baf71a86ae52533 100644
--- a/fleet-ctr/infer.py
+++ b/fleet-ctr/infer.py
@@ -1,3 +1,17 @@
+#   Copyright (c) 2019 PaddlePaddle Authors. All Rights Reserved.
+#
+# 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 math
 import sys
 import os
diff --git a/fleet-ctr/process_rawmodel.py b/fleet-ctr/process_rawmodel.py
index 20601c8c78fe77ebeaf3d091201fc86ec585e25f..463d131be1c6f8874b8330e69482384f5a9ed78d 100644
--- a/fleet-ctr/process_rawmodel.py
+++ b/fleet-ctr/process_rawmodel.py
@@ -1,3 +1,17 @@
+#   Copyright (c) 2019 PaddlePaddle Authors. All Rights Reserved.
+#
+# 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 os
 import sys
 
diff --git a/save_program/dumper.py b/save_program/dumper.py
index 49f45003fbcd6fc191d4c82ee0e9aa303de27e6e..d284fe1e7cd8df5efdb1b668d07f7ec4f5d1dbd8 100644
--- a/save_program/dumper.py
+++ b/save_program/dumper.py
@@ -1,18 +1,18 @@
 #!/usr/bin/env python
-# -*- coding: utf-8 -*-
+#   Copyright (c) 2019 PaddlePaddle Authors. All Rights Reserved.
 #
-# Name: dumper.py
+# 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
 #
-# Author: wangguibao (wangguibao@baidu.com)
-#
-# Usage: python dumper.py --model_path /path/to/model
-#
-# Dumps CTR model SparseFeatFactors embedding as key-value pairs, then
-# convert to Hadoop SequenceFile format
-#
-# Reference:
-# http://wiki.baidu.com/pages/viewpage.action?pageId=651610671
+#     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 argparse
 import logging
 import struct
diff --git a/save_program/nets.py b/save_program/nets.py
index f06e36945d22c2b47f59da541ff0f5614586c3db..7ae328704c351e22acc3c3da5185a09e9a51073d 100644
--- a/save_program/nets.py
+++ b/save_program/nets.py
@@ -1,3 +1,17 @@
+#   Copyright (c) 2019 PaddlePaddle Authors. All Rights Reserved.
+#
+# 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.
+
 from __future__ import print_function
 
 import argparse
diff --git a/save_program/replace_params.py b/save_program/replace_params.py
index 2e83f3725bfd7d16c8fcfa7e516d179935148265..b1e53259041b096ff2c01970956ab38121ec6ccc 100644
--- a/save_program/replace_params.py
+++ b/save_program/replace_params.py
@@ -1,3 +1,17 @@
+#   Copyright (c) 2019 PaddlePaddle Authors. All Rights Reserved.
+#
+# 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 os
 import shutil
 import argparse