diff --git a/business/jxstore/event/event.go b/business/jxstore/event/event.go
index a28431256..bb989223a 100644
--- a/business/jxstore/event/event.go
+++ b/business/jxstore/event/event.go
@@ -132,6 +132,10 @@ func CreateMessageGroup(ctx *jxcontext.Context, userID, userID2 string) (err err
 		groupID int
 	)
 	if userID2 != "" {
+		messageGroups, err := dao.GetMessageGroups(db, userID, model.GroupMemberTypeNormal, userID2)
+		if len(messageGroups) > 0 && messageGroups[0].MessageGroupMembers != nil {
+			return err
+		}
 		user, err := dao.GetUserByID(db, "user_id", userID2)
 		if err != nil {
 			return err
diff --git a/business/model/dao/event.go b/business/model/dao/event.go
index ad4cce5d6..fe0178976 100644
--- a/business/model/dao/event.go
+++ b/business/model/dao/event.go
@@ -170,3 +170,42 @@ func GetImMessageRecord(db *DaoDB, vendorOrderID, userID string, storeID, vendor
 	err = GetRows(db, &msg, sql, sqlParams)
 	return msg, err
 }
+
+type GetMessageGroupsResult struct {
+	model.MessageGroup
+	MessageGroupMembers []*model.MessageGroupMember `json:"messageGroupMembers"`
+}
+
+func GetMessageGroups(db *DaoDB, userID string, groupType int, userID2 string) (messageGroupsResult []*GetMessageGroupsResult, err error) {
+	sql := `
+		SELECT *
+		  FROM message_group
+		 WHERE deleted_at = ?  
+	`
+	sqlParams := []interface{}{utils.DefaultTimeValue}
+	if userID != "" {
+		sql += " AND user_id = ?"
+		sqlParams = append(sqlParams, userID)
+	}
+	if groupType != 0 {
+		sql += " AND type = ?"
+		sqlParams = append(sqlParams, groupType)
+	}
+	if err = GetRows(db, &messageGroupsResult, sql, sqlParams); err == nil {
+		for _, v := range messageGroupsResult {
+			var messageGroupMembers []*model.MessageGroupMember
+			sql2 := `
+				SELECT * FROM message_group_member WHERE group_id = ?
+			`
+			sqlParams2 := []interface{}{v.GroupID}
+			if userID2 != "" {
+				sql2 += ` AND user_id = ?`
+				sqlParams2 = append(sqlParams2, userID2)
+			}
+			if err = GetRows(db, &messageGroupMembers, sql2, sqlParams2); err == nil {
+				v.MessageGroupMembers = messageGroupMembers
+			}
+		}
+	}
+	return messageGroupsResult, err
+}