diff --git a/middleware/IpcConfig/src/IpcConfig.cpp b/middleware/IpcConfig/src/IpcConfig.cpp
index 5dcef297..22117eb0 100644
--- a/middleware/IpcConfig/src/IpcConfig.cpp
+++ b/middleware/IpcConfig/src/IpcConfig.cpp
@@ -24,11 +24,19 @@ const int IpcConfig::GetInt(const IpcConfigKey &key)
 }
 void IpcConfig::ReadAllConfigParameters(void)
 {
+    bool configChanging = false;
     StatusCode code = ConfigGetInt(mCfg, "test_num", &(mAllData.testNum));
     if (StatusCodeEqual(code, "CONFIG_CODE_PARAM_NOT_EXIST"))
     {
+        LogWarning("test_num doesn't exist, will make it as default.\n");
+        configChanging = true;
         constexpr int DEFAULT_TEST_NUM = 0;
         mAllData.testNum = DEFAULT_TEST_NUM;
         ConfigSetInt(mCfg, "test_num", mAllData.testNum);
     }
+    if (true == configChanging)
+    {
+        LogInfo("Save the config file.\n");
+        ConfigSaveFile(mCfg);
+    }
 }
\ No newline at end of file
diff --git a/utils/Config/include/Config.h b/utils/Config/include/Config.h
index 50649d20..e2955355 100644
--- a/utils/Config/include/Config.h
+++ b/utils/Config/include/Config.h
@@ -15,10 +15,12 @@ extern "C"
     {
         const StatusCode (*get_int)(VConfig *, const char *, int *);
         const StatusCode (*set_int)(VConfig *, const char *, const int);
+        const StatusCode (*save)(VConfig *);
     } VConfig;
     const StatusCode ConfigInit(void);
     const StatusCode ConfigUnInit(void);
     VConfig *OpenConfigFile(const char *fileName);
+    const StatusCode ConfigSaveFile(VConfig *cfg);
     void CloseConfigFile(VConfig *cfg);
     const StatusCode ConfigGetInt(VConfig *cfg, const char *name, int *value);
     const StatusCode ConfigSetInt(VConfig *cfg, const char *name, const int value);
diff --git a/utils/Config/src/Config.c b/utils/Config/src/Config.c
index 86f26457..5bc2ec46 100644
--- a/utils/Config/src/Config.c
+++ b/utils/Config/src/Config.c
@@ -14,6 +14,14 @@ VConfig *OpenConfigFile(const char *fileName)
 {
     return (VConfig *)NewConfig(fileName);
 }
+const StatusCode ConfigSaveFile(VConfig *cfg)
+{
+    if (NULL == cfg)
+    {
+        return CreateStatusCode(STATUS_CODE_NOT_OK);
+    }
+    return cfg->save(cfg);
+}
 void CloseConfigFile(VConfig *cfg)
 {
     if (NULL == cfg)
diff --git a/utils/Config/src/ConfigImpl.c b/utils/Config/src/ConfigImpl.c
index 98f7f594..c6e9ca5c 100644
--- a/utils/Config/src/ConfigImpl.c
+++ b/utils/Config/src/ConfigImpl.c
@@ -1,12 +1,31 @@
 #include "ConfigImpl.h"
 #include "ILog.h"
+#include "ConfigCode.h"
 #include <stdlib.h>
 #include <unistd.h>
+#include <string.h>
+static const StatusCode ConfigSaveFileImpl(VConfig *cfg)
+{
+    /* Write out the new configuration. */
+    LogInfo("Save file[%s].\n", ((Config *)cfg)->mFileName);
+    if (!config_write_file(&(((Config *)cfg)->cfg), ((Config *)cfg)->mFileName))
+    {
+        LogError("Save config failed.\n");
+        fprintf(stderr, "Error while writing file.\n");
+        return CreateStatusCode(STATUS_CODE_NOT_OK);
+    }
+    return CreateStatusCode(STATUS_CODE_OK);
+}
 static void ConfigClose(VConfig *cfg)
 {
     if (NULL != cfg)
     {
         config_destroy(&(((Config *)cfg)->cfg));
+        if (NULL != ((Config *)cfg)->mFileName)
+        {
+            free(((Config *)cfg)->mFileName);
+            ((Config *)cfg)->mFileName = NULL;
+        }
         free(cfg);
     }
 }
@@ -14,8 +33,11 @@ static const StatusCode ConfigGetIntImpl(VConfig *cfg, const char *name, int *va
 {
     int result = 0;
     config_setting_t *root, *setting, *movie;
-    root = config_root_setting(&(((Config *)cfg)->cfg));
-    setting = config_setting_get_member(root, name);
+    result = config_lookup_int(&(((Config *)cfg)->cfg), name, value);
+    if (CONFIG_FALSE == result)
+    {
+        return CreateConfigCode(CONFIG_CODE_PARAM_NOT_EXIST);
+    }
     return CreateStatusCode(STATUS_CODE_OK);
 }
 static const StatusCode ConfigSetIntImpl(VConfig *cfg, const char *name, const int value)
@@ -33,9 +55,11 @@ static void ConfigImplInit(Config *cfg)
         LogError("NULL pointer.\n");
         return;
     }
+    cfg->mFileName = NULL;
     cfg->close = ConfigClose;
     cfg->base.get_int = ConfigGetIntImpl;
     cfg->base.set_int = ConfigSetIntImpl;
+    cfg->base.save = ConfigSaveFileImpl;
 }
 Config *NewConfig(const char *fileName)
 {
@@ -70,5 +94,12 @@ Config *NewConfig(const char *fileName)
             return NULL;
         }
     }
+    unsigned int fileLength = strlen(fileName) + 1;
+    cfg->mFileName = (char *)malloc(fileLength);
+    memset(cfg->mFileName, 0, fileLength);
+    if (NULL != cfg->mFileName)
+    {
+        memcpy(cfg->mFileName, fileName, fileLength - 1);
+    }
     return cfg;
 }
\ No newline at end of file
diff --git a/utils/Config/src/ConfigImpl.h b/utils/Config/src/ConfigImpl.h
index 94fb30af..fd2deded 100644
--- a/utils/Config/src/ConfigImpl.h
+++ b/utils/Config/src/ConfigImpl.h
@@ -12,6 +12,7 @@ extern "C"
         VConfig base;
         void (*close)(VConfig *);
         config_t cfg;
+        char *mFileName;
     } Config;
     Config *NewConfig(const char *fileName);
 #ifdef __cplusplus