diff --git a/frameworks/intl/include/date_time_format.h b/frameworks/intl/include/date_time_format.h
index 129027c1728f49c2aa9c97882475b77858611a32..07f5686a5d472aa16ca2f22631c270e70987bf79 100644
--- a/frameworks/intl/include/date_time_format.h
+++ b/frameworks/intl/include/date_time_format.h
@@ -59,6 +59,9 @@ public:
     std::string GetLocaleMatcher() const;
     std::string GetFormatMatcher() const;
     std::string GetFractionalSecondDigits() const;
+    static std::unique_ptr<DateTimeFormat> CreateInstance(const std::vector<std::string> &localeTags,
+                                                          std::map<std::string, std::string> &configs);
+
 private:
     std::string localeTag;
     std::string dateStyle;
@@ -135,6 +138,7 @@ private:
     void FixPatternPartTwo();
     void removeAmPmChar();
     int64_t GetArrayValue(int64_t *dateArray, size_t index, size_t size);
+    bool CheckInitSuccess();
 };
 } // namespace I18n
 } // namespace Global
diff --git a/frameworks/intl/include/i18n_timezone.h b/frameworks/intl/include/i18n_timezone.h
index ca769e0c0f6d9281ffb68b48dac8224a6fa34434..d1e31ce1e14a38eeddc45181ac5fc06ecf6b607f 100644
--- a/frameworks/intl/include/i18n_timezone.h
+++ b/frameworks/intl/include/i18n_timezone.h
@@ -32,8 +32,10 @@ public:
     std::string GetDisplayName(bool isDST);
     std::string GetDisplayName(std::string localeStr);
     std::string GetDisplayName(std::string localeStr, bool isDST);
+    static std::unique_ptr<I18nTimeZone> CreateInstance(std::string zoneID);
 
 private:
+    icu::TimeZone* GetTimeZone();
     icu::TimeZone *timezone;
 };
 } // namespace I18n
diff --git a/frameworks/intl/include/locale_config.h b/frameworks/intl/include/locale_config.h
index 2c0c48b7d838b0d7e98e949fdd6e77a604412b2e..c695cb6a06da9aeeb800b4692d4b1777bbc152a4 100644
--- a/frameworks/intl/include/locale_config.h
+++ b/frameworks/intl/include/locale_config.h
@@ -46,6 +46,7 @@ public:
     static std::string GetValidLocale(const std::string &localeTag);
     static bool Is24HourClock();
     static bool Set24HourClock(bool option);
+    static bool CheckPermission();
 
 private:
     static bool IsValidLanguage(const std::string &language);
@@ -96,7 +97,6 @@ private:
     static std::set<std::string> validHcTag;
     static bool listsInitialized;
     static bool InitializeLists();
-    static bool CheckPermission();
 };
 } // namespace I18n
 } // namespace Global
diff --git a/frameworks/intl/include/phone_number_format.h b/frameworks/intl/include/phone_number_format.h
index 60ebce358ab83f3371eff99be13746b22bc6d054..676fa90a4df96324719e964e655fee3e9ca4f0e6 100644
--- a/frameworks/intl/include/phone_number_format.h
+++ b/frameworks/intl/include/phone_number_format.h
@@ -31,8 +31,11 @@ public:
     virtual ~PhoneNumberFormat();
     bool isValidPhoneNumber(const std::string &number) const;
     std::string format(const std::string &number) const;
+    static std::unique_ptr<PhoneNumberFormat> CreateInstance(const std::string &countryTag,
+                                                             const std::map<std::string, std::string> &options);
 
 private:
+    PhoneNumberUtil* GetPhoneNumberUtil();
     PhoneNumberUtil *util;
     std::string country;
     PhoneNumberUtil::PhoneNumberFormat phoneNumberFormat;
diff --git a/frameworks/intl/src/collator.cpp b/frameworks/intl/src/collator.cpp
index b3b5fc9b6152cc38590aeb908e8644913a939878..2f1b4824da0f9b74b55cd4417120403394cd5b41 100644
--- a/frameworks/intl/src/collator.cpp
+++ b/frameworks/intl/src/collator.cpp
@@ -92,12 +92,17 @@ bool Collator::IsValidCollation(std::string &collation, UErrorCode &status)
         std::unique_ptr<icu::StringEnumeration> enumeration(
             icu::Collator::getKeywordValuesForLocale("collation", icu::Locale(locale.getBaseName()), false, status));
         int length;
-        const char *validCollations = enumeration->next(&length, status);
+        const char *validCollations = nullptr;
+        if (enumeration != nullptr) {
+            validCollations = enumeration->next(&length, status);
+        }
         while (validCollations != nullptr) {
             if (!strcmp(validCollations, currentCollation)) {
                 return true;
             }
-            validCollations = enumeration->next(&length, status);
+            if (enumeration != nullptr) {
+                validCollations = enumeration->next(&length, status);
+            }
         }
     }
     return false;
diff --git a/frameworks/intl/src/date_time_format.cpp b/frameworks/intl/src/date_time_format.cpp
index 3929550b77aa01131e4ea60bc472b264f7497d35..79df7efb059755ad004b12d4006b9f592d41c243 100644
--- a/frameworks/intl/src/date_time_format.cpp
+++ b/frameworks/intl/src/date_time_format.cpp
@@ -77,6 +77,24 @@ DateTimeFormat::~DateTimeFormat()
     }
 }
 
+bool DateTimeFormat::CheckInitSuccess()
+{
+    if (dateIntvFormat == nullptr || calendar == nullptr || dateFormat == nullptr || localeInfo == nullptr) {
+        return false;
+    }
+    return true;
+}
+
+std::unique_ptr<DateTimeFormat> DateTimeFormat::CreateInstance(const std::vector<std::string> &localeTags,
+                                                               std::map<std::string, std::string> &configs)
+{
+    std::unique_ptr<DateTimeFormat> dateTimeFormat = std::make_unique<DateTimeFormat>(localeTags, configs);
+    if (!dateTimeFormat->CheckInitSuccess()) {
+        return nullptr;
+    }
+    return dateTimeFormat;
+}
+
 void DateTimeFormat::InitWithLocale(const std::string &curLocale, std::map<std::string, std::string> &configs)
 {
     UErrorCode status = U_ZERO_ERROR;
@@ -228,10 +246,10 @@ void DateTimeFormat::InitDateFormat(UErrorCode &status)
     if (!dateStyle.empty() || !timeStyle.empty()) {
         DateFormat::EStyle dateStyleValue = DateFormat::EStyle::kNone;
         DateFormat::EStyle timeStyleValue = DateFormat::EStyle::kNone;
-        if (!dateStyle.empty()) {
+        if (!dateStyle.empty() && dateTimeStyle.count(dateStyle) > 0) {
             dateStyleValue = dateTimeStyle[dateStyle];
         }
-        if (!timeStyle.empty()) {
+        if (!timeStyle.empty() && dateTimeStyle.count(timeStyle) > 0) {
             timeStyleValue = dateTimeStyle[timeStyle];
         }
         dateFormat = DateFormat::createDateTimeInstance(dateStyleValue, timeStyleValue, locale);
@@ -495,6 +513,9 @@ std::string DateTimeFormat::FormatRange(int64_t *fromDate, size_t fromDateSize,
     minute = GetArrayValue(toDate, MINUTE_INDEX, toDateSize);
     second = GetArrayValue(toDate, SECOND_INDEX, toDateSize);
     auto toCalendar = std::unique_ptr<Calendar>(Calendar::createInstance(locale, status));
+    if (toCalendar == nullptr) {
+        return nullptr;
+    }
     toCalendar->clear();
     toCalendar->set(year, month, day, hour, minute, second);
     if (!timeZone.empty()) {
diff --git a/frameworks/intl/src/i18n_timezone.cpp b/frameworks/intl/src/i18n_timezone.cpp
index 24ee048c52eb02f9b34b13c74ee9841b0920e9b5..5bb50a357609de5728b01e16b133ce1771c3a602 100644
--- a/frameworks/intl/src/i18n_timezone.cpp
+++ b/frameworks/intl/src/i18n_timezone.cpp
@@ -39,6 +39,20 @@ I18nTimeZone::~I18nTimeZone()
     }
 }
 
+icu::TimeZone* I18nTimeZone::GetTimeZone()
+{
+    return timezone;
+}
+
+std::unique_ptr<I18nTimeZone> I18nTimeZone::CreateInstance(std::string zoneID)
+{
+    std::unique_ptr<I18nTimeZone> i18nTimeZone = std::make_unique<I18nTimeZone>(zoneID);
+    if (i18nTimeZone->GetTimeZone() == nullptr) {
+        return nullptr;
+    }
+    return i18nTimeZone;
+}
+
 int32_t I18nTimeZone::GetOffset(double date)
 {
     int32_t rawOffset = 0;
diff --git a/frameworks/intl/src/number_format.cpp b/frameworks/intl/src/number_format.cpp
index 3ad769a3bbd9a8fc858a30e798b1c0259875f1cc..adee381b0242140eaedd1ff9a0539c4545098ed0 100644
--- a/frameworks/intl/src/number_format.cpp
+++ b/frameworks/intl/src/number_format.cpp
@@ -175,7 +175,9 @@ void NumberFormat::ParseConfigs(std::map<std::string, std::string> &configs)
         unit = configs["unit"];
         if (configs.count("unitDisplay") > 0) {
             unitDisplayString = configs["unitDisplay"];
-            unitDisplay = unitStyle[unitDisplayString];
+            if (unitStyle.count(unitDisplayString) > 0) {
+                unitDisplay = unitStyle[unitDisplayString];
+            }
         }
         if (configs.count("unitUsage") > 0) {
             unitUsage = configs["unitUsage"];
@@ -185,7 +187,8 @@ void NumberFormat::ParseConfigs(std::map<std::string, std::string> &configs)
         currency = configs["currency"];
         if (configs.count("currencySign") > 0) {
             currencySign = configs["currencySign"];
-            if (configs["currencySign"] != "accounting" && !signDisplayString.empty()) {
+            if (configs["currencySign"] != "accounting" && !signDisplayString.empty() &&
+                signAccountingStyle.count(signDisplayString) > 0) {
                 signDisplay = signAccountingStyle[signDisplayString];
             }
         }
diff --git a/frameworks/intl/src/phone_number_format.cpp b/frameworks/intl/src/phone_number_format.cpp
index 21706e7fb7860b4ff69e59f9fee3d409f0f8ac75..e1c5084f087c0026c43725e3e81385a0cfe14fb9 100644
--- a/frameworks/intl/src/phone_number_format.cpp
+++ b/frameworks/intl/src/phone_number_format.cpp
@@ -51,6 +51,21 @@ PhoneNumberFormat::~PhoneNumberFormat()
 {
 }
 
+std::unique_ptr<PhoneNumberFormat> PhoneNumberFormat::CreateInstance(const std::string &countryTag,
+    const std::map<std::string, std::string> &options)
+{
+    std::unique_ptr<PhoneNumberFormat> phoneNumberFormat = std::make_unique<PhoneNumberFormat>(countryTag, options);
+    if (phoneNumberFormat->GetPhoneNumberUtil() == nullptr) {
+        return nullptr;
+    }
+    return phoneNumberFormat;
+}
+
+PhoneNumberUtil* PhoneNumberFormat::GetPhoneNumberUtil()
+{
+    return util;
+}
+
 bool PhoneNumberFormat::isValidPhoneNumber(const std::string &number) const
 {
     i18n::phonenumbers::PhoneNumber phoneNumber;
diff --git a/frameworks/intl/src/preferred_language.cpp b/frameworks/intl/src/preferred_language.cpp
index f03ae4fa987750c794d75bec5441dd9da1c00d39..11c508442f073e7fcf93ee140fc9b51c68771d88 100644
--- a/frameworks/intl/src/preferred_language.cpp
+++ b/frameworks/intl/src/preferred_language.cpp
@@ -66,6 +66,9 @@ bool PreferredLanguage::AddPreferredLanguageNonExist(std::vector<std::string> &p
 
 bool PreferredLanguage::AddPreferredLanguage(const std::string &language, int index)
 {
+    if (!LocaleConfig::CheckPermission()) {
+        return false;
+    }
     if (!IsValidTag(language)) {
         return false;
     }
@@ -111,6 +114,9 @@ bool PreferredLanguage::AddPreferredLanguage(const std::string &language, int in
 
 bool PreferredLanguage::RemovePreferredLanguage(int index)
 {
+    if (!LocaleConfig::CheckPermission()) {
+        return false;
+    }
     std::vector<std::string> preferredLanguageList = GetPreferredLanguageList();
     int idx = index;
     if (index < 0) {
diff --git a/interfaces/js/kits/src/i18n_addon.cpp b/interfaces/js/kits/src/i18n_addon.cpp
index 9fbcb17ecdf35ed92639dbb08a16693bfe172c64..45c6f09969950cbc5040a5bd11fc7422ffcb9f1d 100644
--- a/interfaces/js/kits/src/i18n_addon.cpp
+++ b/interfaces/js/kits/src/i18n_addon.cpp
@@ -958,7 +958,7 @@ bool I18nAddon::InitPhoneNumberFormatContext(napi_env env, napi_callback_info in
         return false;
     }
     env_ = env;
-    phonenumberfmt_ = std::make_unique<PhoneNumberFormat>(country, options);
+    phonenumberfmt_ = PhoneNumberFormat::CreateInstance(country, options);
 
     return phonenumberfmt_ != nullptr;
 }
@@ -2456,7 +2456,7 @@ napi_value I18nAddon::I18nTimeZoneConstructor(napi_env env, napi_callback_info i
         HiLog::Error(LABEL, "Wrap II18nAddon failed");
         return nullptr;
     }
-    obj->timezone_ = std::make_unique<I18nTimeZone>(zoneID);
+    obj->timezone_ = I18nTimeZone::CreateInstance(zoneID);
     if (!obj->timezone_) {
         HiLog::Error(LABEL, "Wrap TimeZone failed");
         return nullptr;
diff --git a/interfaces/js/kits/src/intl_addon.cpp b/interfaces/js/kits/src/intl_addon.cpp
index 01005d6b2fc1f807d8c17a322c6b464c282cdb70..31195e8b5d9c9221b28c7331f20210f650d40175 100644
--- a/interfaces/js/kits/src/intl_addon.cpp
+++ b/interfaces/js/kits/src/intl_addon.cpp
@@ -370,7 +370,6 @@ napi_value IntlAddon::DateTimeFormatConstructor(napi_env env, napi_callback_info
     napi_value thisVar = nullptr;
     void *data = nullptr;
     napi_status status = napi_get_cb_info(env, info, &argc, argv, &thisVar, &data);
-
     std::vector<std::string> localeTags;
     if (argv[0] != nullptr) {
         napi_valuetype valueType = napi_valuetype::napi_undefined;
@@ -389,31 +388,26 @@ napi_value IntlAddon::DateTimeFormatConstructor(napi_env env, napi_callback_info
             }
         }
     }
-
     std::map<std::string, std::string> map = {};
     if (argv[1] != nullptr) {
         GetDateOptionValues(env, argv[1], map);
     }
-
     std::unique_ptr<IntlAddon> obj = nullptr;
     obj = std::make_unique<IntlAddon>();
     if (!obj) {
         HiLog::Error(LABEL, "Create IntlAddon failed");
         return nullptr;
     }
-
     status =
         napi_wrap(env, thisVar, reinterpret_cast<void *>(obj.get()), IntlAddon::Destructor, nullptr, &obj->wrapper_);
     if (status != napi_ok) {
         HiLog::Error(LABEL, "Wrap IntlAddon failed");
         return nullptr;
     }
-
     if (!obj->InitDateTimeFormatContext(env, info, localeTags, map)) {
         HiLog::Error(LABEL, "Init DateTimeFormat failed");
         return nullptr;
     }
-
     obj.release();
     return thisVar;
 }
@@ -428,7 +422,7 @@ bool IntlAddon::InitDateTimeFormatContext(napi_env env, napi_callback_info info,
         return false;
     }
     env_ = env;
-    datefmt_ = std::make_unique<DateTimeFormat>(localeTags, map);
+    datefmt_ = DateTimeFormat::CreateInstance(localeTags, map);
 
     return datefmt_ != nullptr;
 }
@@ -538,6 +532,10 @@ napi_value IntlAddon::FormatDateTimeRange(napi_env env, napi_callback_info info)
     napi_value thisVar = nullptr;
     void *data = nullptr;
     napi_get_cb_info(env, info, &argc, argv, &thisVar, &data);
+    if (argv[0] == nullptr || argv[1] == nullptr) {
+        HiLog::Error(LABEL, "Parameter wrong");
+        return nullptr;
+    }
     int64_t firstYear = GetYear(env, argv, 0);
     int64_t firstMonth = GetMonth(env, argv, 0);
     int64_t firstDay = GetDay(env, argv, 0);