diff --git a/pkg/rpcclient/notification/group.go b/pkg/rpcclient/notification/group.go
index d4e6f3ec9..f5589f4ce 100644
--- a/pkg/rpcclient/notification/group.go
+++ b/pkg/rpcclient/notification/group.go
@@ -351,11 +351,9 @@ func (g *GroupNotificationSender) JoinGroupApplicationNotification(ctx context.C
 	if err != nil {
 		return err
 	}
-	if !utils.Contain(mcontext.GetOpUserID(ctx), userIDs...) {
-		userIDs = append(userIDs, mcontext.GetOpUserID(ctx))
-	}
+	userIDs = append(userIDs, req.InviterUserID, mcontext.GetOpUserID(ctx))
 	tips := &sdkws.JoinGroupApplicationTips{Group: group, Applicant: user, ReqMsg: req.ReqMessage}
-	for _, userID := range userIDs {
+	for _, userID := range utils.Distinct(userIDs) {
 		err = g.msgClient.Notification(ctx, mcontext.GetOpUserID(ctx), userID, constant.JoinGroupApplicationNotification, tips)
 		if err != nil {
 			log.ZError(ctx, "JoinGroupApplicationNotification failed", err, "group", req.GroupID, "userID", userID)