diff --git a/bundle.json b/bundle.json
index bd19c6760b0a261d1ba7a5eba249c3e2a62991ea..10d428cf5d7fb0f3ae56e184a9d2c738916add5c 100644
--- a/bundle.json
+++ b/bundle.json
@@ -17,6 +17,7 @@
     ],
     "features": [
       "update_service_dupdate_config_path",
+      "update_service_enable_run_on_demand_qos",
       "update_service_updater_sa_cfg_path",
       "update_service_sa_profile_path"
     ],
diff --git a/services/engine/engine_sa.gni b/services/engine/engine_sa.gni
index a421035772ed62744e0a65627c43c2a2fef9a2e9..602a0f14091ebdf2189d5d7491947b68a408e75c 100644
--- a/services/engine/engine_sa.gni
+++ b/services/engine/engine_sa.gni
@@ -27,6 +27,11 @@ declare_args() {
   if (!defined(global_parts_info.distributeddatamgr_preferences)) {
     preference_native_preferences_enable = false
   }
+
+  update_service_enable_run_on_demand_qos = true
+  if (!defined(global_parts_info.update_service_enable_run_on_demand_qos)) {
+    update_service_enable_run_on_demand_qos = false
+  }
 }
 
 sa_sources = [
@@ -188,6 +193,9 @@ if (communication_netmanager_base_enable) {
 if (preference_native_preferences_enable) {
   sa_defines += [ "NATIVE_PREFERENCES_ENABLE" ]
 }
+if (update_service_enable_run_on_demand_qos) {
+  sa_defines += [ "UPDATE_SERVICE_ENABLE_RUN_ON_DEMAND_QOS" ]
+}
 sa_defines += sqlite_defines
 
 sa_cflags = [
diff --git a/services/engine/include/update_service.h b/services/engine/include/update_service.h
index a123318f0677f1f1381dd6e6aaa6f28fb2d8bed6..85e18c950d6a62279496615bd005fc4d91f7450f 100644
--- a/services/engine/include/update_service.h
+++ b/services/engine/include/update_service.h
@@ -97,6 +97,11 @@ public:
 
     sptr<IUpdateCallback> GetUpgradeCallback(const UpgradeInfo &info);
 
+#ifdef UPDATE_SERVICE_ENABLE_RUN_ON_DEMAND_QOS
+private:
+    void SetThreadPrio(int priority);
+#endif
+
 #ifndef UPDATER_UT
 protected:
 #endif
diff --git a/services/engine/src/update_service.cpp b/services/engine/src/update_service.cpp
index 7b2dd0ee73c3709fc6475b3085524a54287b844c..53d8cddca7aff55c16d6725770a111fb4d8dbbc8 100644
--- a/services/engine/src/update_service.cpp
+++ b/services/engine/src/update_service.cpp
@@ -36,6 +36,10 @@
 
 #include "update_service_module.h"
 #include "module_manager.h"
+#ifdef UPDATE_SERVICE_ENABLE_RUN_ON_DEMAND_QOS
+#include <sys/syscall.h>
+#include <sys/resource.h>
+#endif
 
 namespace OHOS {
 namespace UpdateEngine {
@@ -43,6 +47,11 @@ REGISTER_SYSTEM_ABILITY_BY_ID(UpdateService, UPDATE_DISTRIBUTED_SERVICE_ID, true
 
 OHOS::sptr<UpdateService> UpdateService::updateService_ { nullptr };
 
+#ifdef UPDATE_SERVICE_ENABLE_RUN_ON_DEMAND_QOS
+constexpr int OPEN_SO_PRIO = -20;
+constexpr int NORMAL_PRIO = 0;
+#endif
+
 void UpdateService::ClientDeathRecipient::OnRemoteDied(const wptr<IRemoteObject> &remote)
 {
     ENGINE_LOGI("client DeathRecipient OnRemoteDied: %{public}s", upgradeInfo_.ToString().c_str());
@@ -425,6 +434,17 @@ int UpdateService::Dump(int fd, const std::vector<std::u16string> &args)
     }
 }
 
+#ifdef UPDATE_SERVICE_ENABLE_RUN_ON_DEMAND_QOS
+void UpdateService::SetThreadPrio(int priority)
+{
+    int tid = syscall(SYS_gettid);
+    ENGINE_LOGI("set tid: %{public}d priority:%{public}d.", tid, priority);
+    if (setpriority(PRIO_PROCESS, tid, priority) != 0) {
+        ENGINE_LOGE("set tid: %{public}d priority:%{public}d failed.", tid, priority);
+    }
+}
+#endif
+
 void UpdateService::OnStart(const SystemAbilityOnDemandReason &startReason)
 {
     ENGINE_LOGI("UpdaterService oh OnStart, startReason name %{public}s, id %{public}d, value %{public}s",
@@ -437,7 +457,13 @@ void UpdateService::OnStart(const SystemAbilityOnDemandReason &startReason)
     DelayedSingleton<ConfigParse>::GetInstance()->LoadConfigInfo(); // 启动读取配置信息
     std::string libPath = DelayedSingleton<ConfigParse>::GetInstance()->GetModuleLibPath();
     ENGINE_LOGI("GetModuleLibPath %{public}s ", libPath.c_str());
+#ifdef UPDATE_SERVICE_ENABLE_RUN_ON_DEMAND_QOS
+    SetThreadPrio(OPEN_SO_PRIO);
+#endif
     ModuleManager::GetInstance().LoadModule(libPath);
+#ifdef UPDATE_SERVICE_ENABLE_RUN_ON_DEMAND_QOS
+    SetThreadPrio(NORMAL_PRIO);
+#endif
 
     ENGINE_LOGI("RegisterOhFunc HandleOhRemoteRequest");
     RegisterOhFunc();