diff --git a/services/formmgr/BUILD.gn b/services/formmgr/BUILD.gn
index 1ea0f1282196c4a211a6ac9684ecf7344db72ddb..5808dd089fe23e09bb329d4c0da63288ab57b30b 100644
--- a/services/formmgr/BUILD.gn
+++ b/services/formmgr/BUILD.gn
@@ -22,7 +22,6 @@ config("formmgr_config") {
 
     #    "//base/miscservices/time/interfaces/innerkits/include",
   ]
-  cflags_cc = [ "-fexceptions" ]
 }
 
 group("fms_target") {
diff --git a/services/formmgr/src/form_data_mgr.cpp b/services/formmgr/src/form_data_mgr.cpp
index 1f5a45f8470d80a3e58f137bb5b795a73d17978a..94b4e638b69dee256edce65ec772551d606876ab 100644
--- a/services/formmgr/src/form_data_mgr.cpp
+++ b/services/formmgr/src/form_data_mgr.cpp
@@ -1089,7 +1089,7 @@ void FormDataMgr::ParseIntervalConfig(FormRecord &record, const int configDurati
  * @param record The form record.
  * @param info form item info.
  */
-void FormDataMgr::ParseAtTimerConfig(FormRecord &record, const FormItemInfo &info) const 
+void FormDataMgr::ParseAtTimerConfig(FormRecord &record, const FormItemInfo &info) const
 {
     record.isEnableUpdate = false;
     record.updateDuration = 0;
@@ -1099,21 +1099,16 @@ void FormDataMgr::ParseAtTimerConfig(FormRecord &record, const FormItemInfo &inf
         return;
     }
 
-    std::vector<std::string> temp = FormUtil::StringSplit(configAtTime, Constants::TIME_DELIMETER);   
+    std::vector<std::string> temp = FormUtil::StringSplit(configAtTime, Constants::TIME_DELIMETER);
     if (temp.size() != Constants::UPDATE_AT_CONFIG_COUNT) {
         APP_LOGE("%{public}s, invalid config", __func__);
         return;
     }
     int hour = -1;
     int min = -1;
-    try {
-        hour = std::stoi(temp[0]);
-        min = std::stoi(temp[1]);
-    } catch (const std::exception& e) {
-        APP_LOGE("%{public}s, failed to stoi.", __func__);
-    }    
-    
-    if (hour < Constants::MIN_TIME || hour > Constants::MAX_HOUR || min < Constants::MIN_TIME || min > 
+    hour = std::stoi(temp[0]);
+    min = std::stoi(temp[1]);
+    if (hour < Constants::MIN_TIME || hour > Constants::MAX_HOUR || min < Constants::MIN_TIME || min >
         Constants::MAX_MININUTE) {
         APP_LOGE("%{public}s, time is invalid", __func__);
         return;
diff --git a/services/formmgr/src/form_sys_event_receiver.cpp b/services/formmgr/src/form_sys_event_receiver.cpp
index 0fd6edcd7af5f3a947fd82dc5911b18e221b5c57..c6f35022361770870c4bb9a6be0d2433aec1979a 100644
--- a/services/formmgr/src/form_sys_event_receiver.cpp
+++ b/services/formmgr/src/form_sys_event_receiver.cpp
@@ -370,7 +370,7 @@ void FormSysEventReceiver::ReCreateForm(const int64_t formId)
     want.SetParam(Constants::RECREATE_FORM_KEY, true);
     FormProviderMgr::GetInstance().ConnectAmsForRefresh(formId, reCreateRecord, want, false);
 }
-void FormSysEventReceiver::GetTimerCfg(const bool updateEnabled, 
+void FormSysEventReceiver::GetTimerCfg(const bool updateEnabled,
     const int updateDuration, const std::string &configUpdateAt, FormTimerCfg& cfg)
 {
     APP_LOGI("%{public}s start", __func__);
@@ -399,22 +399,16 @@ void FormSysEventReceiver::GetTimerCfg(const bool updateEnabled,
         }
         APP_LOGI("%{public}s,update at timer updateAt:%{public}s", __func__, configUpdateAt.c_str());
 
-        std::vector<std::string> temp = FormUtil::StringSplit(configUpdateAt, Constants::TIME_DELIMETER);   
+        std::vector<std::string> temp = FormUtil::StringSplit(configUpdateAt, Constants::TIME_DELIMETER);
         if (temp.size() != Constants::UPDATE_AT_CONFIG_COUNT) {
             APP_LOGE("%{public}s, invalid config", __func__);
             return;
         }
         int hour = -1;
         int min = -1;
-        try {
-            hour = std::stoi(temp[0]);
-            min = std::stoi(temp[1]);
-        } catch (const std::exception& e) {
-            APP_LOGE("%{public}s, failed to stoi.", __func__);
-            return;
-        }    
-        
-        if (hour < Constants::MIN_TIME || hour > Constants::MAX_HOUR || min < Constants::MIN_TIME || min > 
+        hour = std::stoi(temp[0]);
+        min = std::stoi(temp[1]);
+        if (hour < Constants::MIN_TIME || hour > Constants::MAX_HOUR || min < Constants::MIN_TIME || min >
             Constants::MAX_MININUTE) {
             APP_LOGE("%{public}s, time is invalid", __func__);
             return;
diff --git a/services/formmgr/src/form_util.cpp b/services/formmgr/src/form_util.cpp
index d033818a1bf2addffede4129143fa14cfb905b98..d3f08c5f020012fedad3bcabbddd2c34cd586ca6 100644
--- a/services/formmgr/src/form_util.cpp
+++ b/services/formmgr/src/form_util.cpp
@@ -175,17 +175,11 @@ long FormUtil::GetMillisecondFromTm(struct tm &tmAtTime)
  */
 std::vector<std::string> FormUtil::StringSplit(const std::string &in, const std::string &delim)
 {
-    std::vector<std::string> vEmpty;
-    try {
-        std::regex reg { delim };
-        return std::vector<std::string> {
-            std::sregex_token_iterator(in.begin(), in.end(), reg, -1),
-            std::sregex_token_iterator()
-        };
-    } catch (const std::exception& e) {
-        APP_LOGE("%{public}s, failed to split string.", __func__);
-    }
-    return vEmpty;
+    std::regex reg { delim };
+    return std::vector<std::string> {
+        std::sregex_token_iterator(in.begin(), in.end(), reg, -1),
+        std::sregex_token_iterator()
+    };
 }
 }  // namespace AppExecFwk
 }  // namespace OHOS
\ No newline at end of file