diff --git a/frameworks/emitter/ani/ets/@ohos.events.emitter.ets b/frameworks/emitter/ani/ets/@ohos.events.emitter.ets
index b024039cf90bfa1326e92b7609478ce43c945aaa..9ab3a71096e2d55cbc2a1dfea9a0bebf7049b78c 100644
--- a/frameworks/emitter/ani/ets/@ohos.events.emitter.ets
+++ b/frameworks/emitter/ani/ets/@ohos.events.emitter.ets
@@ -96,13 +96,6 @@ namespace emitter {
     }
   }
 
-  export function on(eventId: string, callback: Callback<EventData>): void {
-    if (eventId === '' || callback == null) {
-      return;
-    }
-    emitter.OnOrOnceStringSync(eventId, false, callback, "eventData");
-  }
-
   export function once(eventId: string, callback: Callback<EventData>): void {
     if (eventId === '' || callback == null) {
       return;
@@ -117,13 +110,6 @@ namespace emitter {
     OffStringIdSync(eventId);
   }
 
-  export function off(eventId: string, callback: Callback<EventData>): void {
-    if (eventId === '' || callback == null) {
-      return;
-    }
-    emitter.OffStringSync(eventId, callback);
-  }
-
   export function off<T>(eventId: string, callback: Callback<EventData> | Callback<GenericEventData<T>>): void {
     if (eventId === '' || callback == null) {
       return;