diff --git a/src/client/src/tscSystem.c b/src/client/src/tscSystem.c
index 7811f39e33529476d361881f4291189530e4c510..114e5c50e6692cc8e0263e0e26788580e9bb86ba 100644
--- a/src/client/src/tscSystem.c
+++ b/src/client/src/tscSystem.c
@@ -445,6 +445,7 @@ static int taos_set_config_imp(const char *config){
     tscError("already set config");
     return 0;
   }
+  taosInitGlobalCfg();
   cJSON *root = cJSON_Parse(config);
   if (root == NULL) {
     tscError("failed to set config, invalid json format: %s", config);
@@ -460,21 +461,15 @@ static int taos_set_config_imp(const char *config){
       ret = -2;
       continue;
     }
-    if(!taosReadConfigOption(item->string, item->valuestring, NULL, NULL)){
+    if(!taosReadConfigOption(item->string, item->valuestring, NULL, NULL, TAOS_CFG_CSTATUS_OPTION)){
       ret = -2;
     }
   }
-  taosPrintGlobalCfg();
   setConfFlag = true;
   return ret;
 }
 
 int taos_set_config(const char *config){
-  if(taos_init()){
-    tscError("failed to call taos_init");
-    return -1;
-  }
-
   static int32_t lock = 0;
 
   for (int i = 1; atomic_val_compare_exchange_32(&lock, 0, 1) != 0; ++i) {
diff --git a/src/util/inc/tconfig.h b/src/util/inc/tconfig.h
index 3c5cdfe08c0a0411d968bb8211cc0d2e691706ec..f73ba9a7aaa2ab2ae669ab17d1bff7e680d5a3b8 100644
--- a/src/util/inc/tconfig.h
+++ b/src/util/inc/tconfig.h
@@ -89,7 +89,7 @@ void taosDumpGlobalCfg();
 
 void taosInitConfigOption(SGlobalCfg cfg);
 SGlobalCfg * taosGetConfigOption(const char *option);
-bool taosReadConfigOption(const char *option, char *value, char *value2, char *value3);
+bool taosReadConfigOption(const char *option, char *value, char *value2, char *value3, int8_t cfgStatus);
 
 #ifdef __cplusplus
 }
diff --git a/src/util/src/tconfig.c b/src/util/src/tconfig.c
index 548b3bc4f5aed921ee50cd3ed3629b5b7916f8a9..e7a8f0639b99e22805f69656160966e08e4da7b2 100644
--- a/src/util/src/tconfig.c
+++ b/src/util/src/tconfig.c
@@ -293,7 +293,9 @@ SGlobalCfg *taosGetConfigOption(const char *option) {
   return NULL;
 }
 
-bool taosReadConfigOption(const char *option, char *value, char *value2, char *value3) {
+bool taosReadConfigOption(const char *option, char *value, char *value2, char *value3,
+                          int8_t cfgStatus) {
+  bool ret = false;
   for (int i = 0; i < tsGlobalConfigNum; ++i) {
     SGlobalCfg *cfg = tsGlobalConfig + i;
     if (!(cfg->cfgType & TSDB_CFG_CTYPE_B_CONFIG)) continue;
@@ -301,35 +303,48 @@ bool taosReadConfigOption(const char *option, char *value, char *value2, char *v
 
     switch (cfg->valType) {
       case TAOS_CFG_VTYPE_INT8:
-        return taosReadInt8Config(cfg, value);
+        ret = taosReadInt8Config(cfg, value);
+        break;
       case TAOS_CFG_VTYPE_INT16:
-        return taosReadInt16Config(cfg, value);
+        ret = taosReadInt16Config(cfg, value);
+        break;
       case TAOS_CFG_VTYPE_INT32:
-        return taosReadInt32Config(cfg, value);
+        ret = taosReadInt32Config(cfg, value);
+        break;
       case TAOS_CFG_VTYPE_UINT16:
-        return taosReadUInt16Config(cfg, value);
+        ret = taosReadUInt16Config(cfg, value);
+        break;
       case TAOS_CFG_VTYPE_FLOAT:
-        return taosReadFloatConfig(cfg, value);
+        ret = taosReadFloatConfig(cfg, value);
+        break;
       case TAOS_CFG_VTYPE_DOUBLE:
-        return taosReadDoubleConfig(cfg, value);
+        ret = taosReadDoubleConfig(cfg, value);
+        break;
       case TAOS_CFG_VTYPE_STRING:
-        return taosReadStringConfig(cfg, value);
+        ret = taosReadStringConfig(cfg, value);
+        break;
       case TAOS_CFG_VTYPE_IPSTR:
-        return taosReadIpStrConfig(cfg, value);
+        ret = taosReadIpStrConfig(cfg, value);
+        break;
       case TAOS_CFG_VTYPE_DIRECTORY:
-        return taosReadDirectoryConfig(cfg, value);
+        ret = taosReadDirectoryConfig(cfg, value);
+        break;
       case TAOS_CFG_VTYPE_DATA_DIRCTORY:
         if (taosReadDirectoryConfig(cfg, value)) {
            taosReadDataDirCfg(value, value2, value3);
-           return true;
+           ret = true;
         }
-        return false;
+        ret = false;
+        break;
       default:
         uError("config option:%s, input value:%s, can't be recognized", option, value);
-        return false;
+        ret = false;
+    }
+    if(ret && cfgStatus == TAOS_CFG_CSTATUS_OPTION){
+      cfg->cfgStatus = TAOS_CFG_CSTATUS_OPTION;
     }
   }
-  return false;
+  return ret;
 }
 
 void taosInitConfigOption(SGlobalCfg cfg) {
@@ -464,7 +479,7 @@ bool taosReadGlobalCfg() {
       if (vlen3 != 0) value3[vlen3] = 0;
     }
 
-    taosReadConfigOption(option, value, value2, value3);
+    taosReadConfigOption(option, value, value2, value3, TAOS_CFG_CSTATUS_FILE);
   }
 
   fclose(fp);