diff --git a/dolphinscheduler-common/src/main/java/org/apache/dolphinscheduler/common/plugin/PluginClassLoader.java b/dolphinscheduler-common/src/main/java/org/apache/dolphinscheduler/common/plugin/PluginClassLoader.java
index 8579e1cd96c685f01312c5234d561f9a1436cffe..8700fbf474fa353ac53111b85d173ac695d1a802 100644
--- a/dolphinscheduler-common/src/main/java/org/apache/dolphinscheduler/common/plugin/PluginClassLoader.java
+++ b/dolphinscheduler-common/src/main/java/org/apache/dolphinscheduler/common/plugin/PluginClassLoader.java
@@ -1,3 +1,19 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements.  See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.
+ * The ASF licenses this file to You 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.
+ */
 package org.apache.dolphinscheduler.common.plugin;
 
 import org.slf4j.Logger;
diff --git a/dolphinscheduler-plugin-api/pom.xml b/dolphinscheduler-plugin-api/pom.xml
index 54160ea720f108a69a340189f50918576f99a6e8..b958b2161674486294b6af73ba4ec9941089e39d 100644
--- a/dolphinscheduler-plugin-api/pom.xml
+++ b/dolphinscheduler-plugin-api/pom.xml
@@ -1,4 +1,21 @@
 <?xml version="1.0"?>
+<!--
+  ~ Licensed to the Apache Software Foundation (ASF) under one or more
+  ~ contributor license agreements.  See the NOTICE file distributed with
+  ~ this work for additional information regarding copyright ownership.
+  ~ The ASF licenses this file to You 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.
+  -->
+
 <project xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd"
          xmlns="http://maven.apache.org/POM/4.0.0"
          xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
diff --git a/dolphinscheduler-plugin-api/src/main/java/org/apache/dolphinscheduler/plugin/model/AlertData.java b/dolphinscheduler-plugin-api/src/main/java/org/apache/dolphinscheduler/plugin/model/AlertData.java
index 4a277b509cf765401438dbfddfd56d224dc60159..da6576f7c63f0c9dadb8dbf697ba14fa5268998a 100644
--- a/dolphinscheduler-plugin-api/src/main/java/org/apache/dolphinscheduler/plugin/model/AlertData.java
+++ b/dolphinscheduler-plugin-api/src/main/java/org/apache/dolphinscheduler/plugin/model/AlertData.java
@@ -1,3 +1,19 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements.  See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.
+ * The ASF licenses this file to You 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.
+ */
 package org.apache.dolphinscheduler.plugin.model;
 
 /**
diff --git a/dolphinscheduler-plugin-api/src/test/java/org/apache/dolphinscheduler/plugin/utils/PropertyUtilsTest.java b/dolphinscheduler-plugin-api/src/test/java/org/apache/dolphinscheduler/plugin/utils/PropertyUtilsTest.java
index 2911cf748599c9fd852249c7d4d804d4857af849..562085769862cb448a95394f68fd61a357344097 100644
--- a/dolphinscheduler-plugin-api/src/test/java/org/apache/dolphinscheduler/plugin/utils/PropertyUtilsTest.java
+++ b/dolphinscheduler-plugin-api/src/test/java/org/apache/dolphinscheduler/plugin/utils/PropertyUtilsTest.java
@@ -1,3 +1,19 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements.  See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.
+ * The ASF licenses this file to You 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.
+ */
 package org.apache.dolphinscheduler.plugin.utils;
 
 import org.junit.Test;
diff --git a/dolphinscheduler-plugin-api/src/test/resources/plugin.properties b/dolphinscheduler-plugin-api/src/test/resources/plugin.properties
index b3151c72d7c489197b28a2dc94dc04702760d241..d2ea3831be2b277b2fe94dc3e8b3102d20025f72 100644
--- a/dolphinscheduler-plugin-api/src/test/resources/plugin.properties
+++ b/dolphinscheduler-plugin-api/src/test/resources/plugin.properties
@@ -1,3 +1,20 @@
+#
+# Licensed to the Apache Software Foundation (ASF) under one or more
+# contributor license agreements.  See the NOTICE file distributed with
+# this work for additional information regarding copyright ownership.
+# The ASF licenses this file to You 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.
+#
+
 test.string=teststring
 test.false=false
 test.true=true