diff --git a/src/cq/src/cqMain.c b/src/cq/src/cqMain.c
index a5de27d7fc0cc3922456f5311834f2bd812f7a57..cc1628c968afd339440186e689850a46dba4af2b 100644
--- a/src/cq/src/cqMain.c
+++ b/src/cq/src/cqMain.c
@@ -125,8 +125,6 @@ void cqFree(void *handle) {
   pthread_mutex_unlock(&pContext->mutex);
 
   if (delete) {
-    pthread_mutex_unlock(&pContext->mutex);
-    
     pthread_mutex_destroy(&pContext->mutex);
     
     taosTmrCleanUp(pContext->tmrCtrl);
@@ -186,6 +184,18 @@ void *cqOpen(void *ahandle, const SCqCfg *pCfg) {
   return pContext;
 }
 
+static void freeSCqContext(void *handle) {
+  if (handle == NULL) {
+    return;
+  }
+  SCqContext *pContext = handle;
+  pthread_mutex_destroy(&pContext->mutex);
+    
+  taosTmrCleanUp(pContext->tmrCtrl);
+  pContext->tmrCtrl = NULL;
+  cDebug("vgId:%d, CQ is closed", pContext->vgId);
+  free(pContext);
+}
 void cqClose(void *handle) {
   if (tsEnableStream == 0) {
     return;
@@ -217,6 +227,7 @@ void cqClose(void *handle) {
     
     taosRemoveRef(cqObjRef, rid);
   }
+  freeSCqContext(pContext);
 }
 
 void cqStart(void *handle) {