diff --git a/frameworks/intl/src/i18n_timezone.cpp b/frameworks/intl/src/i18n_timezone.cpp
index 39d6dd24..7e911334 100644
--- a/frameworks/intl/src/i18n_timezone.cpp
+++ b/frameworks/intl/src/i18n_timezone.cpp
@@ -738,9 +738,6 @@ std::string I18nTimeZone::GetDisplayNameByTaboo(const std::string& localeStr, st
         getReplacedTimezoneDisplayName(localeStr.c_str(), GetID().c_str(), recvArr);
     }
     result = recvArr;
-#ifndef SUPPORT_ASAN
-    dlclose(i18nUtilHandle);
-#endif
     return result;
 }
 
diff --git a/frameworks/intl/src/locale_info.cpp b/frameworks/intl/src/locale_info.cpp
index 4129469f..9c72fc8e 100644
--- a/frameworks/intl/src/locale_info.cpp
+++ b/frameworks/intl/src/locale_info.cpp
@@ -36,7 +36,6 @@ std::set<std::string> LocaleInfo::GetValidLocales()
         for (int i = 0; i < validCount; i++) {
             allValidLocales.insert(validLocales[i].getLanguage());
         }
-        delete[] validLocales;
     }
     allValidLocales.insert("in");
     allValidLocales.insert("iw");
diff --git a/frameworks/intl/src/phone_number_matched.cpp b/frameworks/intl/src/phone_number_matched.cpp
index 9029f00d..2bdb6444 100644
--- a/frameworks/intl/src/phone_number_matched.cpp
+++ b/frameworks/intl/src/phone_number_matched.cpp
@@ -45,7 +45,6 @@ PhoneNumberMatched::PhoneNumberMatched(std::string& country)
 PhoneNumberMatched::~PhoneNumberMatched()
 {
     delete phoneNumberRule;
-    delete phoneNumberUtil;
     delete shortNumberInfo;
 }
 
@@ -168,7 +167,6 @@ std::vector<MatchedNumberInfo> PhoneNumberMatched::FindShortNumbers(std::string&
             matchedNumberInfoList.push_back(matcher);
         }
     }
-    delete shortMatch;
     return matchedNumberInfoList;
 }
 
@@ -264,7 +262,6 @@ bool PhoneNumberMatched::HandleWithShortAndShort(std::vector<MatchedNumberInfo>&
             ReplaceSpecifiedPos(filteredString, pos.first, pos.second);
             flag = true;
         }
-        delete matcher;
     } else {
         result.push_back(info);
         ReplaceSpecifiedPos(filteredString, pos.first, pos.second);
@@ -454,12 +451,12 @@ std::vector<MatchedNumberInfo> PhoneNumberMatched::HandlePositiveRule(PhoneNumbe
         icu::RegexPattern* pattern = rule->GetPattern();
         UErrorCode status = U_ZERO_ERROR;
         icu::RegexMatcher* mat1 = pattern->matcher(str, status);
-        if (mat1->find(status)) {
+        if (mat1 != nullptr && mat1->find(status)) {
             std::vector<MatchedNumberInfo> infoList = rule->Handle(match, message);
             return infoList;
         }
         icu::RegexMatcher* mat2 = pattern->matcher(message, status);
-        if (mat2->find(status)) {
+        if (mat2 != nullptr &&mat2->find(status)) {
             std::vector<MatchedNumberInfo> infoList = rule->Handle(match, message);
             if (infoList.size() == 0) {
                 continue;
diff --git a/frameworks/intl/src/regex_rule.cpp b/frameworks/intl/src/regex_rule.cpp
index fee69101..91677b08 100644
--- a/frameworks/intl/src/regex_rule.cpp
+++ b/frameworks/intl/src/regex_rule.cpp
@@ -516,7 +516,6 @@ std::vector<MatchedNumberInfo> RegexRule::HandlePossibleNumberWithPattern(icu::R
             matchedList.push_back(info);
         }
     }
-    delete mat;
     return matchedList;
 }
 } // namespace I18n