diff --git a/kernel/include/los_event.h b/kernel/include/los_event.h
index 933215af..eda65e82 100644
--- a/kernel/include/los_event.h
+++ b/kernel/include/los_event.h
@@ -274,7 +274,7 @@ extern UINT32 LOS_EventWrite(PEVENT_CB_S eventCB, UINT32 events);
 
 /**
  * @ingroup los_event
- * @brief Clear the event occurring in a specified task.
+ * @brief Clear the event of the eventCB by a specified eventMask.
  *
  * @par Description:
  * <ul>
@@ -287,7 +287,7 @@ extern UINT32 LOS_EventWrite(PEVENT_CB_S eventCB, UINT32 events);
  * </ul>
  *
  * @param eventCB     [IN/OUT] Pointer to the event control block to be cleared.
- * @param events      [IN]     Mask of the event to be cleared.
+ * @param eventMask   [IN]     Mask of the event to be cleared.
  *
  * @retval #LOS_ERRNO_EVENT_PTR_NULL  Null pointer.
  * @retval #LOS_OK                    The event is successfully cleared.
@@ -295,7 +295,7 @@ extern UINT32 LOS_EventWrite(PEVENT_CB_S eventCB, UINT32 events);
  * <ul><li>los_event.h: the header file that contains the API declaration.</li></ul>
  * @see LOS_EventPoll | LOS_EventRead | LOS_EventWrite
  */
-extern UINT32 LOS_EventClear(PEVENT_CB_S eventCB, UINT32 events);
+extern UINT32 LOS_EventClear(PEVENT_CB_S eventCB, UINT32 eventMask);
 
 /**
  * @ingroup los_event
diff --git a/kernel/src/los_event.c b/kernel/src/los_event.c
index 937f3846..733c6b65 100644
--- a/kernel/src/los_event.c
+++ b/kernel/src/los_event.c
@@ -204,14 +204,14 @@ LITE_OS_SEC_TEXT_INIT UINT32 LOS_EventDestroy(PEVENT_CB_S eventCB)
     OsHookCall(LOS_HOOK_TYPE_EVENT_DESTROY);
     return LOS_OK;
 }
-LITE_OS_SEC_TEXT_MINOR UINT32 LOS_EventClear(PEVENT_CB_S eventCB, UINT32 events)
+LITE_OS_SEC_TEXT_MINOR UINT32 LOS_EventClear(PEVENT_CB_S eventCB, UINT32 eventMask)
 {
     UINTPTR intSave;
     if (eventCB == NULL) {
         return LOS_ERRNO_EVENT_PTR_NULL;
     }
     intSave = LOS_IntLock();
-    eventCB->uwEventID &= events;
+    eventCB->uwEventID &= eventMask;
     LOS_IntRestore(intSave);
     OsHookCall(LOS_HOOK_TYPE_EVENT_CLEAR, eventCB);
     return LOS_OK;