diff --git a/frameworks/intl/include/locale_config.h b/frameworks/intl/include/locale_config.h
index 7aae79b414ded8c9f3f9e544cb8cac823892c062..6721a7f7f3904ce9fb94e2f96c68962a280228b0 100644
--- a/frameworks/intl/include/locale_config.h
+++ b/frameworks/intl/include/locale_config.h
@@ -157,6 +157,7 @@ private:
     static const char *SUPPORT_LOCALES_PATH;
     static const char *SUPPORT_LOCALES_NAME;
     static const char *DEFAULT_LOCALE;
+    static const char *DEVELOPER_MODE_KEY;
     static const char *supportLocalesTag;
     static const char *LANG_PATH;
     static const char *rootTag;
@@ -182,6 +183,8 @@ private:
     static const std::string NUMBER_SYSTEM_KEY;
     static const std::string TEMPERATURE_UNIT_KEY;
     static const std::string WEEK_DAY_KEY;
+    static const std::string PSEUDO_REGION_XA;
+    static const std::string PSEUDO_REGION_XB;
 
     static const std::unordered_set<std::string>& GetSupportedLocales();
     static const std::unordered_set<std::string>& GetSupportedLocalesV15();
@@ -208,6 +211,7 @@ private:
     static bool Is24HourLocale(const std::string& systemLocale);
     static bool HasDesignator(const std::string& inFormat, const char designator);
     static void QueryUpgradeLocale();
+    static std::string GetPseudoCountryTag(const char* countryTag, std::string &regionTag);
 
 #ifdef SUPPORT_GRAPHICS
     /**
diff --git a/frameworks/intl/src/locale_config.cpp b/frameworks/intl/src/locale_config.cpp
index 9bb6cd310187ea1b869c11650ec359b7f0d64666..6e851b760a54067687403921a0571956409b9cde 100644
--- a/frameworks/intl/src/locale_config.cpp
+++ b/frameworks/intl/src/locale_config.cpp
@@ -67,6 +67,7 @@ const char *LocaleConfig::UPGRADE_LOCALE_KEY = "persist.global.upgrade_locale";
 const char *LocaleConfig::DEFAULT_LOCALE_KEY = "const.global.locale";
 const char *LocaleConfig::DEFAULT_LANGUAGE_KEY = "const.global.language";
 const char *LocaleConfig::DEFAULT_REGION_KEY = "const.global.region";
+const char *LocaleConfig::DEVELOPER_MODE_KEY = "const.security.developermode.state";
 const char *LocaleConfig::SIM_COUNTRY_CODE_KEY = "telephony.sim.countryCode0";
 const char *LocaleConfig::SUPPORTED_LOCALES_NAME = "supported_locales";
 const char *LocaleConfig::REGIONS_LANGUAGES_PATH = "etc/xml/i18n_param_config.xml";
@@ -96,6 +97,8 @@ const std::string LocaleConfig::TEMPERATURE_UNIT_KEY = "mu";
 const std::string LocaleConfig::WEEK_DAY_KEY = "fw";
 const std::string LocaleConfig::TIMEZONE_KEY = "persist.time.timezone";
 const std::string LocaleConfig::DEFAULT_TIMEZONE = "GMT";
+const std::string LocaleConfig::PSEUDO_REGION_XA = "XA";
+const std::string LocaleConfig::PSEUDO_REGION_XB = "XB";
 unordered_set<string> LocaleConfig::supportedLocales;
 unordered_set<string> LocaleConfig::supportedLocalesV15;
 unordered_set<string> LocaleConfig::supportLocales;
@@ -543,6 +546,11 @@ void LocaleConfig::Split(const string &src, const string &sep, std::unordered_se
 std::unordered_set<std::string> LocaleConfig::GetSystemLanguages()
 {
     std::unordered_set<std::string> result(whiteLanguages);
+    std::string developerMode = ReadSystemParameter(DEVELOPER_MODE_KEY, CONFIG_LEN);
+    if (developerMode.compare("true") == 0) {
+        result.insert("en-XA");
+        result.insert("ar-XB");
+    }
     std::unordered_set<string> blockedLanguages = GetBlockedLanguages();
     Expunge(result, blockedLanguages);
     return result;
@@ -1744,6 +1752,7 @@ std::string LocaleConfig::UpdateLanguageOfLocale(const std::string &languageTag)
         return systemLocaleTag;
     }
     std::string regionTag = systemLocale.getCountry();
+    regionTag = GetPseudoCountryTag(languageLocale.getCountry(), regionTag);
     std::string extendParamTag;
     size_t pos = systemLocaleTag.find(EXT_PARAM_KEY);
     if (pos != std::string::npos) {
@@ -1753,6 +1762,20 @@ std::string LocaleConfig::UpdateLanguageOfLocale(const std::string &languageTag)
     return CreateLocale(langTag, scriptTag, regionTag, extendParamTag);
 }
 
+std::string LocaleConfig::GetPseudoCountryTag(const char* countryTag, std::string &regionTag)
+{
+    if (countryTag == nullptr) {
+        return regionTag;
+    }
+    if (PSEUDO_REGION_XA.compare(countryTag) == 0) {
+        return PSEUDO_REGION_XA;
+    }
+    if (PSEUDO_REGION_XB.compare(countryTag) == 0) {
+        return PSEUDO_REGION_XB;
+    }
+    return regionTag;
+}
+
 std::string LocaleConfig::CreateLocale(const std::string &languageTag, const std::string &scriptTag,
     const std::string &regionTag, const std::string &extendParamTag)
 {
diff --git a/frameworks/zone/test/unittest/zone_util_test.cpp b/frameworks/zone/test/unittest/zone_util_test.cpp
index b281cb7cdfafe0f0bae2dfaf2947e9344f3ac6ca..e681bf2c82c6479b50e2b1a229095849fd825648 100644
--- a/frameworks/zone/test/unittest/zone_util_test.cpp
+++ b/frameworks/zone/test/unittest/zone_util_test.cpp
@@ -316,6 +316,9 @@ HWTEST_F(ZoneUtilTest, ZoneUtilFuncTest0012, TestSize.Level1)
     std::set<std::string> timeZoneList = GetTimeZoneAvailableIDs(errorCode);
     std::unordered_set<std::string> systemCountries = LocaleConfig::GetSystemCountries();
     for (const auto& systemCountry : systemCountries) {
+        if (systemCountry.compare("XA") == 0 || systemCountry.compare("XB") == 0) {
+            continue;
+        }
         std::string timeZoneId = util.GetDefaultZone(systemCountry);
         EXPECT_TRUE(timeZoneList.find(timeZoneId) != timeZoneList.end());
         if (timeZoneList.find(timeZoneId) == timeZoneList.end()) {