diff --git a/frameworks/js/backup_ext/ext_backup_impl.cpp b/frameworks/js/backup_ext/ext_backup_impl.cpp
index 092bc8cfa7cae30f16ac6582d4f1ef3dff5db718..9f6b828b54882437c1bc87f5409850d883484171 100644
--- a/frameworks/js/backup_ext/ext_backup_impl.cpp
+++ b/frameworks/js/backup_ext/ext_backup_impl.cpp
@@ -21,8 +21,8 @@ extern const char _binary_backup_extension_ability_abc_start[];
 extern const char _binary_backup_extension_ability_abc_end[];
 
 static napi_module _module = {
-    .nm_modname = "application.BackupExtensionAbility",
     .nm_filename = "application/libbackupextensionability_napi.so/BackupExtensionAbility.js",
+    .nm_modname = "application.BackupExtensionAbility",
 };
 
 extern "C" __attribute__((constructor)) void NAPI_application_BackupExtensionAbility_AutoRegister()
diff --git a/frameworks/native/backup_ext/src/ext_backup_js.cpp b/frameworks/native/backup_ext/src/ext_backup_js.cpp
index 4905d2ce643e87d7aa9885572039c3071d908de9..ad919e7a95bd52eb04035836524f0533d6b7e0bb 100644
--- a/frameworks/native/backup_ext/src/ext_backup_js.cpp
+++ b/frameworks/native/backup_ext/src/ext_backup_js.cpp
@@ -300,7 +300,7 @@ static int DoCallJsMethod(CallJsParam *param)
     }
     AbilityRuntime::HandleEscape handleEscape(*jsRuntime);
     auto env = jsRuntime->GetNapiEnv();
-    vector<napi_value> argv = {};
+    vector<napi_value> argv;
     if (param->argParser != nullptr) {
         if (!param->argParser(env, argv)) {
             HILOGE("failed to get params.");
@@ -318,7 +318,7 @@ static int DoCallJsMethod(CallJsParam *param)
         HILOGE("ResultValueParser must not null.");
         return EINVAL;
     }
-    napi_value result;
+    napi_value result = nullptr;
     napi_call_function(env, value, method, argv.size(), argv.data(), &result);
     if (!param->retParser(env, handleEscape.Escape(result))) {
         HILOGI("Parser js result fail.");
diff --git a/services/backup_sa/include/module_ipc/svc_session_manager.h b/services/backup_sa/include/module_ipc/svc_session_manager.h
index 59509266e07c559ce96d76adf9f474714aa527e2..a342c97a45bdabd9b0785a3ccdd8202fd63594de 100644
--- a/services/backup_sa/include/module_ipc/svc_session_manager.h
+++ b/services/backup_sa/include/module_ipc/svc_session_manager.h
@@ -58,6 +58,8 @@ struct BackupExtInfo {
     uint32_t extTimerId;
     /* Timer Status: true is start & false is stop */
     bool timerStatus {false};
+    /* Need backup data size */
+    int64_t dataSize;
 };
 
 class Service;
@@ -359,6 +361,22 @@ public:
      */
     std::string GetBundleVersionName(const std::string &bundleName);
 
+    /**
+     * @brief Set the bundle data size object
+     *
+     * @param bundleName
+     * @param dataSize
+     */
+    void SetBundleDataSize(const std::string &bundleName, int64_t dataSize);
+
+    /**
+     * @brief Get the bundle data size object
+     *
+     * @param  bundleName
+     * @return dataSize
+     */
+    int64_t GetBundleDataSize(const std::string &bundleName);
+
     /**
      * @brief 启动应用扩展能力定时器
      *
diff --git a/services/backup_sa/src/module_ipc/service.cpp b/services/backup_sa/src/module_ipc/service.cpp
index 1252a8173213a6a0aa3d524065b40e92db6bc809..b17ef871ea0aa490959939631855b7fd174df7ac 100644
--- a/services/backup_sa/src/module_ipc/service.cpp
+++ b/services/backup_sa/src/module_ipc/service.cpp
@@ -257,6 +257,7 @@ ErrCode Service::AppendBundlesRestoreSession(UniqueFd fd,
             session_->SetBundleRestoreType(bundleInfo.name, restoreType);
             session_->SetBundleVersionCode(bundleInfo.name, bundleInfo.versionCode);
             session_->SetBundleVersionName(bundleInfo.name, bundleInfo.versionName);
+            session_->SetBundleDataSize(bundleInfo.name, bundleInfo.spaceOccupied);
         }
     }
     for (auto info : restoreInfos) {
@@ -279,6 +280,7 @@ ErrCode Service::AppendBundlesBackupSession(const vector<BundleName> &bundleName
     auto backupInfos = BundleMgrAdapter::GetBundleInfos(bundleNames, session_->GetSessionUserId());
     session_->AppendBundles(bundleNames);
     for (auto info : backupInfos) {
+        session_->SetBundleDataSize(info.name, info.spaceOccupied);
         if (info.allToBackup == false) {
             session_->GetServiceReverseProxy()->BackupOnBundleStarted(BError(BError::Codes::SA_REFUSED_ACT), info.name);
             session_->RemoveExtInfo(info.name);
diff --git a/services/backup_sa/src/module_ipc/svc_session_manager.cpp b/services/backup_sa/src/module_ipc/svc_session_manager.cpp
index f4ec832fb2df5931c7751809eab664f0d8463f43..e6d8b659678bd14cd2800b4295c9fc6ca2f3f3c8 100644
--- a/services/backup_sa/src/module_ipc/svc_session_manager.cpp
+++ b/services/backup_sa/src/module_ipc/svc_session_manager.cpp
@@ -568,6 +568,28 @@ std::string SvcSessionManager::GetBundleVersionName(const std::string &bundleNam
     return it->second.versionName;
 }
 
+void SvcSessionManager::SetBundleDataSize(const std::string &bundleName, int64_t dataSize)
+{
+    unique_lock<shared_mutex> lock(lock_);
+    if (!impl_.clientToken) {
+        throw BError(BError::Codes::SA_INVAL_ARG, "No caller token was specified");
+    }
+
+    auto it = GetBackupExtNameMap(bundleName);
+    it->second.dataSize = dataSize;
+}
+
+int64_t SvcSessionManager::GetBundleDataSize(const std::string &bundleName)
+{
+    unique_lock<shared_mutex> lock(lock_);
+    if (!impl_.clientToken) {
+        throw BError(BError::Codes::SA_INVAL_ARG, "No caller token was specified");
+    }
+
+    auto it = GetBackupExtNameMap(bundleName);
+    return it->second.dataSize;
+}
+
 uint32_t SvcSessionManager::CalAppProcessTime(const std::string &bundleName)
 {
     const uint32_t defaultTimeout = 30; /* 30 second */
@@ -578,8 +600,7 @@ uint32_t SvcSessionManager::CalAppProcessTime(const std::string &bundleName)
     uint32_t timeout;
 
     try {
-        stat = StorageMgrAdapter::GetBundleStats(bundleName);
-        uint64_t appSize = static_cast<uint64_t>(stat.appSize_ + stat.dataSize_);
+        uint64_t appSize = static_cast<uint64_t> (GetBundleDataSize(bundleName));
         /* % UINT_MAX force conver uint64 to uint32 */
         /* timeout = (AppSize / 3Ms) * 3 + 30 */
         timeout = (uint32_t)(defaultTimeout + (appSize / processRate) * multiple % UINT_MAX);