diff --git a/src/rpc/src/trpc.c b/src/rpc/src/trpc.c
index 4c16ada51c078e03996a0e6320733a8865f88954..31b6f8f94d52bb02b1005d314e487ad75945036a 100644
--- a/src/rpc/src/trpc.c
+++ b/src/rpc/src/trpc.c
@@ -503,6 +503,10 @@ int taosGetRpcConn(int chann, int sid, char *meterId, STaosRpc *pServer, SRpcCon
   }
 
   pConn = pChann->connList + sid;
+  if (pChann == NULL || pChann->connList == NULL) {
+    tTrace("%s cid:%d sid:%d, connlist is null, received:%s", pServer->label, chann, sid, meterId);
+    return TSDB_CODE_MISMATCHED_METER_ID;
+  }
 
   if (pConn->signature == NULL) {
     memset(pConn, 0, sizeof(SRpcConn));