diff --git a/models/match/dssm/data/preprocess.py b/models/match/dssm/data/preprocess.py
index ad7ad4b634c2b9ac0c3a8130aba579761f41f675..7594e4fe1e4b07992be5055e8e1fcfca63746c4e 100644
--- a/models/match/dssm/data/preprocess.py
+++ b/models/match/dssm/data/preprocess.py
@@ -1,3 +1,16 @@
+# Copyright (c) 2020 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.
 #encoding=utf-8
 
 import os
diff --git a/models/match/dssm/run.sh b/models/match/dssm/run.sh
index 0ec86418e3f64fa0b02e0897de1748320e7406c0..5248d311a3d2b6365dff9ce2bd08fd75f2e599ee 100644
--- a/models/match/dssm/run.sh
+++ b/models/match/dssm/run.sh
@@ -1,3 +1,16 @@
+# Copyright (c) 2020 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.
 #!/bin/bash
 echo "................run................."
 python -m paddlerec.run -m ./config.yaml >result1.txt
diff --git a/tools/cal_pos_neg.py b/tools/cal_pos_neg.py
index 8b356046f47b204f8709805a05a2cc0509a6d195..3f349aef2022181bace5dade79c898937be4783b 100644
--- a/tools/cal_pos_neg.py
+++ b/tools/cal_pos_neg.py
@@ -1,3 +1,16 @@
+# Copyright (c) 2020 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.
 #!/usr/bin/python  
 #-*- coding:utf-8 -*-  
 ############################