diff --git a/middleware/IpcConfig/include/IIpcConfig.h b/middleware/IpcConfig/include/IIpcConfig.h
index e7451274..b39e7363 100644
--- a/middleware/IpcConfig/include/IIpcConfig.h
+++ b/middleware/IpcConfig/include/IIpcConfig.h
@@ -22,13 +22,16 @@
 enum class IpcConfigKey
 {
     TEST_NUM = 0,
+    TEST_STRING,
     END
 };
+
 class IIpcConfig
 {
 public:
     IIpcConfig() = default;
     virtual ~IIpcConfig() = default;
+    virtual const StatusCode ConfigFileSave(void) {return CreateStatusCode(STATUS_CODE_OK); }
     static std::shared_ptr<IIpcConfig> &GetInstance(std::shared_ptr<IIpcConfig> *impl = nullptr);
     virtual const StatusCode Init(void) { return CreateStatusCode(STATUS_CODE_OK); }
     virtual const StatusCode UnInit(void) { return CreateStatusCode(STATUS_CODE_OK); }
@@ -50,11 +53,8 @@ public:
     virtual void SetLongDouble(const IpcConfigKey &key, const long double &value) {}
     virtual const bool GetBool(const IpcConfigKey &key) { return true; }
     virtual void SetBool(const IpcConfigKey &key, const bool &value) {}
-    virtual const std::string_view GetString(const IpcConfigKey &key) { return "undefine"; }
+    virtual const std::string GetString(const IpcConfigKey &key) { return "undefine"; }
     virtual void SetString(const IpcConfigKey &key, const std::string string) {}
-
-
-
 };
 bool CreateIpcConfig(void);
 #endif
\ No newline at end of file
diff --git a/middleware/IpcConfig/src/IpcConfig.cpp b/middleware/IpcConfig/src/IpcConfig.cpp
index f97f3a37..d7451417 100644
--- a/middleware/IpcConfig/src/IpcConfig.cpp
+++ b/middleware/IpcConfig/src/IpcConfig.cpp
@@ -25,6 +25,13 @@ IpcConfig::IpcConfig()
             std::reference_wrapper<int>>(
             IpcConfigKey::TEST_NUM,
             std::reference_wrapper<int>(mAllData.testNum)));
+
+    mCfgMapString.insert(
+        std::make_pair<
+            IpcConfigKey,
+            std::reference_wrapper<CHAR_STRING>>(
+            IpcConfigKey::TEST_STRING,
+            std::reference_wrapper<CHAR_STRING>(mAllData.testString)));
 }
 const StatusCode IpcConfig::Init(void)
 {
@@ -48,6 +55,11 @@ const StatusCode IpcConfig::UnInit(void)
     CloseConfigFile(mCfg);
     return CreateStatusCode(STATUS_CODE_OK);
 }
+const StatusCode IpcConfig::ConfigFileSave(void)
+{
+    return ConfigSaveFile(mCfg);
+}
+
 const int IpcConfig::GetInt(const IpcConfigKey &key)
 {
     std::map<IpcConfigKey, std::reference_wrapper<int>>::iterator iter;
@@ -112,7 +124,6 @@ const long IpcConfig::GetLong(const IpcConfigKey &key)
     constexpr long UNKNOWN_CONFIG = -1;
     return UNKNOWN_CONFIG;
 }
-
 void IpcConfig::SetLong(const IpcConfigKey &key, const long &value)
 {
     std::map<IpcConfigKey, std::reference_wrapper<long>>::iterator iter;
@@ -217,7 +228,6 @@ const double IpcConfig::GetDouble(const IpcConfigKey &key)
     constexpr double UNKNOWN_CONFIG = -1.0;
     return UNKNOWN_CONFIG;
 }
-
 void IpcConfig::SetDouble(const IpcConfigKey &key, const double &value)
 {
     std::map<IpcConfigKey, std::reference_wrapper<double>>::iterator iter;
@@ -284,28 +294,28 @@ void IpcConfig::SetBool(const IpcConfigKey &key, const bool &value)
         LogError("Can't find the key.\n");
     }
 }
-const std::string_view IpcConfig::GetString(const IpcConfigKey &key)
+const std::string IpcConfig::GetString(const IpcConfigKey &key)
 {
-    std::map<IpcConfigKey, std::reference_wrapper<std::string>>::iterator iter;
+    std::map<IpcConfigKey, std::reference_wrapper<CHAR_STRING>>::iterator iter;
     iter = mCfgMapString.find(key);
     if (iter != mCfgMapString.end())
     {
-        std::string s = iter->second;
-        std::string_view sv(s);
+        std::reference_wrapper<CHAR_STRING> s = iter->second;
+        const std::string sv(s);
         return sv;
     }
     LogError("Can't find the key.\n");
-    constexpr std::string_view UNKNOWN_CONFIG = "undefine";
+    const std::string UNKNOWN_CONFIG = "undefine";
     return UNKNOWN_CONFIG;
 }
 
 void IpcConfig::SetString(const IpcConfigKey &key, const std::string string)
 {
-    std::map<IpcConfigKey, std::reference_wrapper<std::string>>::iterator iter;
+    std::map<IpcConfigKey, std::reference_wrapper<CHAR_STRING>>::iterator iter;
     iter = mCfgMapString.find(key);
     if (iter != mCfgMapString.end())
     {
-        iter->second.get() = string;
+        strncpy(iter->second, string.c_str(), sizeof(CHAR_STRING));
         mCfgChanged = CONFIG_HAS_CHANGED;
     }
     else
@@ -325,10 +335,26 @@ void IpcConfig::ReadAllConfigParameters(void)
         mAllData.testNum = DEFAULT_TEST_NUM;
         ConfigSetInt(mCfg, "test_num", mAllData.testNum);
     }
+
+    const char *testString = NULL;
+    StatusCode string_code = ConfigGetString(mCfg, "test_string", &(testString));
+    if (StatusCodeEqual(string_code, "CONFIG_CODE_PARAM_NOT_EXIST"))
+    {
+        LogWarning("test_string doesn't exist, will make it as default.\n");
+        mCfgChanged = CONFIG_HAS_CHANGED;
+        char  DEFAULT_TEST_STRING[] = "undefine";
+        strncpy(mAllData.testString, DEFAULT_TEST_STRING, sizeof(mAllData.testString));
+        ConfigSetString(mCfg, "test_string", mAllData.testString);
+    }
+    else
+    {
+        strncpy(mAllData.testString, testString, sizeof(mAllData.testString));
+    }
+
     if (CONFIG_HAS_CHANGED == mCfgChanged)
     {
         LogInfo("Save the config file.\n");
         mCfgChanged = CONFIG_HAS_NOT_CHANGED;
         ConfigSaveFile(mCfg);
     }
-}
\ No newline at end of file
+}
diff --git a/middleware/IpcConfig/src/IpcConfig.h b/middleware/IpcConfig/src/IpcConfig.h
index 1a2ba777..d21517c5 100644
--- a/middleware/IpcConfig/src/IpcConfig.h
+++ b/middleware/IpcConfig/src/IpcConfig.h
@@ -21,9 +21,12 @@
 #include <map>
 constexpr bool CONFIG_HAS_CHANGED = true;
 constexpr bool CONFIG_HAS_NOT_CHANGED = false;
+
+typedef char CHAR_STRING[256];
 typedef struct Config_s
 {
     int testNum;
+    CHAR_STRING testString;
 } Config_s;
 class MapInt
 {
@@ -38,6 +41,7 @@ public:
     virtual ~IpcConfig() = default;
     const StatusCode Init(void) override;
     const StatusCode UnInit(void) override;
+    const StatusCode ConfigFileSave(void) override;
     const int GetInt(const IpcConfigKey &key) override;
     void SetInt(const IpcConfigKey &key, const int &value) override;
     const short GetShort(const IpcConfigKey &key) override;
@@ -56,7 +60,7 @@ public:
     void SetLongDouble(const IpcConfigKey &key, const long double &value) override;
     const bool GetBool(const IpcConfigKey &key) override;
     void SetBool(const IpcConfigKey &key, const bool &value) override;
-    const std::string_view GetString(const IpcConfigKey &key) override;
+    const std::string GetString(const IpcConfigKey &key) override;
     void SetString(const IpcConfigKey &key, const std::string string) override;
 
 
@@ -76,6 +80,6 @@ private:
     std::map<IpcConfigKey, std::reference_wrapper<double>> mCfgMapDouble;
     std::map<IpcConfigKey, std::reference_wrapper<long double>> mCfgMapLongDouble;
     std::map<IpcConfigKey, std::reference_wrapper<bool>> mCfgMapBool;
-    std::map<IpcConfigKey, std::reference_wrapper<std::string>> mCfgMapString;
+    std::map<IpcConfigKey, std::reference_wrapper<CHAR_STRING>> mCfgMapString;
 };
 #endif
\ No newline at end of file
diff --git a/utils/Config/include/Config.h b/utils/Config/include/Config.h
index e67fe6ed..43a7e1c5 100644
--- a/utils/Config/include/Config.h
+++ b/utils/Config/include/Config.h
@@ -29,6 +29,8 @@ extern "C"
     {
         const StatusCode (*get_int)(VConfig *, const char *, int *);
         const StatusCode (*set_int)(VConfig *, const char *, const int);
+        const StatusCode (*get_string)(VConfig *, const char *, const char**);
+        const StatusCode (*set_string)(VConfig *, const char *, const char*);
         const StatusCode (*save)(VConfig *);
     } VConfig;
     const StatusCode ConfigInit(void);
@@ -38,6 +40,9 @@ extern "C"
     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);
+
+    const StatusCode ConfigGetString(VConfig *cfg, const char *name, const char** value);
+    const StatusCode ConfigSetString(VConfig *cfg, const char *name, const char* value);
 #ifdef __cplusplus
 }
 #endif
diff --git a/utils/Config/src/Config.c b/utils/Config/src/Config.c
index a35660d0..2477d55c 100644
--- a/utils/Config/src/Config.c
+++ b/utils/Config/src/Config.c
@@ -60,4 +60,20 @@ const StatusCode ConfigSetInt(VConfig *cfg, const char *name, const int value)
         return CreateStatusCode(STATUS_CODE_NOT_OK);
     }
     return cfg->set_int(cfg, name, value);
+}
+const StatusCode ConfigGetString(VConfig *cfg, const char *name, const char** value)
+{
+    if (NULL == cfg)
+    {
+        return CreateStatusCode(STATUS_CODE_NOT_OK);
+    }
+    return cfg->get_string(cfg, name, value);
+}
+const StatusCode ConfigSetString(VConfig *cfg, const char *name, const char *value)
+{
+    if (NULL == cfg)
+    {
+        return CreateStatusCode(STATUS_CODE_NOT_OK);
+    }
+    return cfg->set_string(cfg, name, value);
 }
\ No newline at end of file
diff --git a/utils/Config/src/ConfigImpl.c b/utils/Config/src/ConfigImpl.c
index 28f1223c..6939205e 100644
--- a/utils/Config/src/ConfigImpl.c
+++ b/utils/Config/src/ConfigImpl.c
@@ -62,6 +62,25 @@ static const StatusCode ConfigSetIntImpl(VConfig *cfg, const char *name, const i
     config_setting_set_int(setting, value);
     return CreateStatusCode(STATUS_CODE_OK);
 }
+static const StatusCode ConfigGetStringImpl(VConfig *cfg, const char *name, const char** value)
+{
+    int result = 0;
+    // config_setting_t *root;
+    result = config_lookup_string(&(((Config *)cfg)->cfg), name, value);
+    if (CONFIG_FALSE == result)
+    {
+        return CreateConfigCode(CONFIG_CODE_PARAM_NOT_EXIST);
+    }
+    return CreateStatusCode(STATUS_CODE_OK);
+}
+static const StatusCode ConfigSetStringImpl(VConfig *cfg, const char *name, const char* value)
+{
+    config_setting_t *root, *setting;
+    root = config_root_setting(&(((Config *)cfg)->cfg));
+    setting = config_setting_add(root, name, CONFIG_TYPE_STRING);
+    config_setting_set_string(setting, value);
+    return CreateStatusCode(STATUS_CODE_OK);
+}
 static void ConfigImplInit(Config *cfg)
 {
     if (NULL == cfg)
@@ -73,6 +92,9 @@ static void ConfigImplInit(Config *cfg)
     cfg->close = ConfigClose;
     cfg->base.get_int = ConfigGetIntImpl;
     cfg->base.set_int = ConfigSetIntImpl;
+
+    cfg->base.get_string = ConfigGetStringImpl;
+    cfg->base.set_string = ConfigSetStringImpl;
     cfg->base.save = ConfigSaveFileImpl;
 }
 Config *NewConfig(const char *fileName)