diff --git a/internal/api/chat/pull_msg.go b/internal/api/chat/pull_msg.go
index 787ae7141..3e1a2314f 100644
--- a/internal/api/chat/pull_msg.go
+++ b/internal/api/chat/pull_msg.go
@@ -51,7 +51,13 @@ func PullMsgBySeqList(c *gin.Context) {
 	pbData.OperationID = params.OperationID
 	pbData.SeqList = params.SeqList
 
-	grpcConn := getcdv3.GetConn(config.Config.Etcd.EtcdSchema, strings.Join(config.Config.Etcd.EtcdAddr, ","), config.Config.RpcRegisterName.OpenImOfflineMessageName)
+	grpcConn := getcdv3.GetConn(config.Config.Etcd.EtcdSchema, strings.Join(config.Config.Etcd.EtcdAddr, ","), config.Config.RpcRegisterName.OpenImOfflineMessageName, pbData.OperationID)
+	if grpcConn == nil {
+		errMsg := pbData.OperationID + "getcdv3.GetConn == nil"
+		log.NewError(pbData.OperationID, errMsg)
+		c.JSON(http.StatusInternalServerError, gin.H{"errCode": 500, "errMsg": errMsg})
+		return
+	}
 	msgClient := pbChat.NewChatClient(grpcConn)
 	reply, err := msgClient.PullMessageBySeqList(context.Background(), &pbData)
 	if err != nil {