diff --git a/business/jxstore/event/event.go b/business/jxstore/event/event.go
index 59f28371a..1cf1a4430 100644
--- a/business/jxstore/event/event.go
+++ b/business/jxstore/event/event.go
@@ -134,7 +134,7 @@ func CreateMessageGroup(ctx *jxcontext.Context, userID, userID2 string) (message
 	)
 	if userID2 != "" {
 		messageGroups, err := dao.GetMessageGroups(db, userID, model.GroupMemberTypeNormal, userID2)
-		if len(messageGroups) > 0 && messageGroups[0].MessageGroupMembers != nil {
+		if len(messageGroups) > 0 && len(messageGroups[0].MessageGroupMembers) == 0 {
 			return messageGroups[0], err
 		}
 		user, err := dao.GetUserByID(db, "user_id", userID2)