diff --git a/handler/handler.go b/handler/handler.go
index c69bdc3..e24dff7 100644
--- a/handler/handler.go
+++ b/handler/handler.go
@@ -50,6 +50,16 @@ func RegisterLiveHandler(groupID int64, userID int64, handler model.TryCatchHand
 	liveHandlers[groupID][userID] = handler
 }
 
+func UnRegisterLiveHandler(groupID int64, userID int64) {
+	if groupID == 0 {
+		delete(livePrivateHandlers, userID)
+		return
+	}
+	if _, ok := liveHandlers[groupID]; ok {
+		delete(liveHandlers[groupID], userID)
+	}
+}
+
 func RegisterGroupHandler(groupID int64, trigger string, handler model.Handler, level constants.PermissionLevel) {
 	if _, ok := GroupHandlers[groupID]; !ok {
 		GroupHandlers[groupID] = make(map[string]model.HandlerInfo[model.Handler])
@@ -93,7 +103,6 @@ func MsgInHandler(msg model.Message) (reply model.Reply) {
 	}()
 	if handlerUserID, ok := liveHandlers[msg.GroupInfo.GroupId]; ok {
 		if handler, ok := handlerUserID[msg.UserId]; ok {
-			defer func() { liveHandlers[msg.GroupInfo.GroupId][msg.UserId] = nil }()
 			reply, catched := handler(msg)
 			if catched {
 				return reply
@@ -101,7 +110,6 @@ func MsgInHandler(msg model.Message) (reply model.Reply) {
 		}
 	}
 	if handler, ok := livePrivateHandlers[msg.UserId]; ok {
-		defer func() { livePrivateHandlers[msg.UserId] = nil }()
 		reply, catched := handler(msg)
 		if catched {
 			return reply