diff --git a/include/pmu.h b/include/pmu.h
index f2cb5904f8fe6bdb8bfcf4c64a5355457f439478..aa9a723e1bbb6748cb14cd4654a5bda70edf623a 100644
--- a/include/pmu.h
+++ b/include/pmu.h
@@ -139,14 +139,6 @@ int PmuOpen(enum PmuTaskType collectType, struct PmuAttr *attr);
  */
 const char** PmuEventList(enum PmuEventType eventType, unsigned *numEvt);
 
-/**
- * @brief
- * Free eventList pointer.
- * @param eventList event list
- * @param numEvt length of event list
- */
-void PmuEventListFree();
-
 /**
  * @brief
  * Enable counting or sampling of task <pd>.
diff --git a/pmu/pmu_event_list.cpp b/pmu/pmu_event_list.cpp
index 5be2d87afe6f4aaf0cba5990c417b8193f4b527d..849ec9a6efb3a322489fdb886c11833663d9f29b 100644
--- a/pmu/pmu_event_list.cpp
+++ b/pmu/pmu_event_list.cpp
@@ -1,9 +1,17 @@
-/**
- * @copyright Copyright (c) Huawei Technologies Co., Ltd. 2023-2023. All rights reserved.
- * @brief
- * @version 24.0
- * @date 2024-04-18
- */
+/******************************************************************************
+ * Copyright (c) Huawei Technologies Co., Ltd. 2024. All rights reserved.
+ * gala-gopher licensed under the Mulan PSL v2.
+ * You can use this software according to the terms and conditions of the Mulan PSL v2.
+ * You may obtain a copy of Mulan PSL v2 at:
+ *     http://license.coscl.org.cn/MulanPSL2
+ * THIS SOFTWARE IS PROVIDED ON AN "AS IS" BASIS, WITHOUT WARRANTIES OF ANY KIND, EITHER EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO NON-INFRINGEMENT, MERCHANTABILITY OR FIT FOR A PARTICULAR
+ * PURPOSE.
+ * See the Mulan PSL v2 for more details.
+ * Author: Mr.Ye
+ * Create: 2024-04-03
+ * Description: definitions of interfaces of querying and freeing pmu event list
+ ******************************************************************************/
 #include <iostream>
 #include <cstring>
 #include <dirent.h>
diff --git a/pmu/pmu_event_list.h b/pmu/pmu_event_list.h
new file mode 100644
index 0000000000000000000000000000000000000000..82832df5c76c10d300b37b4742d79725aecf6a01
--- /dev/null
+++ b/pmu/pmu_event_list.h
@@ -0,0 +1,20 @@
+/******************************************************************************
+ * Copyright (c) Huawei Technologies Co., Ltd. 2024. All rights reserved.
+ * gala-gopher licensed under the Mulan PSL v2.
+ * You can use this software according to the terms and conditions of the Mulan PSL v2.
+ * You may obtain a copy of Mulan PSL v2 at:
+ *     http://license.coscl.org.cn/MulanPSL2
+ * THIS SOFTWARE IS PROVIDED ON AN "AS IS" BASIS, WITHOUT WARRANTIES OF ANY KIND, EITHER EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO NON-INFRINGEMENT, MERCHANTABILITY OR FIT FOR A PARTICULAR
+ * PURPOSE.
+ * See the Mulan PSL v2 for more details.
+ * Author: Mr.Ye
+ * Create: 2024-04-03
+ * Description: declaration of interface of freeing pmu event list
+ ******************************************************************************/
+#ifndef PMU_EVENT_LIST_H
+#define PMU_EVENT_LIST_H
+
+void PmuEventListFree();
+
+#endif // PMU_EVENT_LIST_H
diff --git a/pmu/pmu_list.cpp b/pmu/pmu_list.cpp
index 0d1c0a71163160ca59d75354be1270b595290353..e79b854f034f304b392f0b4758307a85867609fe 100644
--- a/pmu/pmu_list.cpp
+++ b/pmu/pmu_list.cpp
@@ -23,6 +23,7 @@
 #include "pcerr.h"
 #include "util_time.h"
 #include "log.h"
+#include "pmu_event_list.h"
 #include "pmu_list.h"
 #include "common.h"