diff --git a/services/native/include/power_state_machine.h b/services/native/include/power_state_machine.h
index 8d7b5cb0799e39d508d4e56037f8a4427f07c6cd..37931e3ceb935870fb03b7bd08fb428f880f7df2 100644
--- a/services/native/include/power_state_machine.h
+++ b/services/native/include/power_state_machine.h
@@ -21,6 +21,7 @@
 #include <singleton.h>
 
 #include "actions/idevice_state_action.h"
+#include "ffrt_utils.h"
 #include "ipower_state_callback.h"
 #include "power_common.h"
 #include "power_state_machine_info.h"
@@ -201,6 +202,7 @@ private:
     std::map<PowerState, std::shared_ptr<std::vector<RunningLockType>>> lockMap_;
     std::map<PowerState, std::shared_ptr<StateController>> controllerMap_;
     std::mutex mutex_;
+    std::mutex ffrtMutex_;
     DevicePowerState mDeviceState_;
     sptr<IRemoteObject::DeathRecipient> powerStateCBDeathRecipient_;
     std::set<const sptr<IPowerStateCallback>, classcomp> powerStateListeners_;
@@ -212,6 +214,8 @@ private:
     bool enableDisplaySuspend_ {false};
     bool isScreenOffTimeOverride_ {false};
     int64_t beforeOverrideTime_ {-1};
+    FFRTQueue queue_ {"power_state_machine"};
+    FFRTHandle userActivityTimeoutHandle_ {nullptr};
 };
 } // namespace PowerMgr
 } // namespace OHOS
diff --git a/services/native/src/power_state_machine.cpp b/services/native/src/power_state_machine.cpp
index 6d4449bf6555056f898f7abeb3571950b8d8a213..75279d1e45daed92d696158505c80f2690e89426 100644
--- a/services/native/src/power_state_machine.cpp
+++ b/services/native/src/power_state_machine.cpp
@@ -22,15 +22,12 @@
 #include "hitrace_meter.h"
 #include "power_mgr_factory.h"
 #include "power_mgr_service.h"
-#include "ffrt_utils.h"
 #include "setting_helper.h"
 
 namespace OHOS {
 namespace PowerMgr {
 namespace {
 sptr<SettingObserver> g_displayOffTimeObserver;
-FFRTQueue g_queue("power_state_machine");
-FFRTHandle g_userActivityTimeoutHandle;
 }
 PowerStateMachine::PowerStateMachine(const wptr<PowerMgrService>& pms) : pms_(pms), currentState_(PowerState::UNKNOWN)
 {
@@ -583,10 +580,9 @@ void PowerStateMachine::SetDelayTimer(int64_t delayTime, int32_t event)
         std::to_string(delayTime).c_str(), event);
     switch (event) {
         case CHECK_USER_ACTIVITY_TIMEOUT_MSG: {
-            FFRTTask task = [this] {
-                HandleActivityTimeout();
-            };
-            g_userActivityTimeoutHandle = FFRTUtils::SubmitDelayTask(task, delayTime, g_queue);
+            std::lock_guard lock(ffrtMutex_);
+            FFRTTask task = std::bind(&PowerStateMachine::HandleActivityTimeout, this);
+            userActivityTimeoutHandle_ = FFRTUtils::SubmitDelayTask(task, delayTime, queue_);
             break;
         }
         case CHECK_USER_ACTIVITY_OFF_TIMEOUT_MSG: {
@@ -610,7 +606,8 @@ void PowerStateMachine::CancelDelayTimer(int32_t event)
     POWER_HILOGD(FEATURE_ACTIVITY, "Cancel delay timer, event: %{public}d", event);
     switch (event) {
         case CHECK_USER_ACTIVITY_TIMEOUT_MSG: {
-            FFRTUtils::CancelTask(g_userActivityTimeoutHandle, g_queue);
+            std::lock_guard lock(ffrtMutex_);
+            FFRTUtils::CancelTask(userActivityTimeoutHandle_, queue_);
             break;
         }
         case CHECK_USER_ACTIVITY_OFF_TIMEOUT_MSG: {
diff --git a/test/apitest/inner_api/shutdown/BUILD.gn b/test/apitest/inner_api/shutdown/BUILD.gn
index 366d9035f0468aade19445fce282bbc30fa93652..f856247a1c4ff6aab96ce8db315899443457c10b 100644
--- a/test/apitest/inner_api/shutdown/BUILD.gn
+++ b/test/apitest/inner_api/shutdown/BUILD.gn
@@ -37,14 +37,16 @@ deps_ex = [
   "ability_base:base",
   "ability_base:want",
   "ability_runtime:ability_manager",
+  "c_utils:utils",
   "common_event_service:cesfwk_innerkits",
-  "ipc:ipc_core",
+  "ffrt:libffrt",
   "hilog:libhilog",
+  "input:libmmi-client",
+  "ipc:ipc_core",
+  "power_manager:power_ffrt",
   "safwk:system_ability_fwk",
   "samgr:samgr_proxy",
   "sensor:sensor_interface_native",
-  "c_utils:utils",
-  "input:libmmi-client",
 ]
 
 ohos_unittest("takeover_shutdown_callback_test") {
diff --git a/test/fuzztest/power_fuzzer/BUILD.gn b/test/fuzztest/power_fuzzer/BUILD.gn
index 709c534f40892968d35ef410ad18787c41894709..2b4ed9e99648690d1091bc93b6873e6f8e42eb0c 100644
--- a/test/fuzztest/power_fuzzer/BUILD.gn
+++ b/test/fuzztest/power_fuzzer/BUILD.gn
@@ -49,9 +49,11 @@ ohos_fuzztest("PowerFuzzTest") {
   external_deps = [
     "ability_runtime:ability_manager",
     "c_utils:utils",
+    "ffrt:libffrt",
     "hilog:libhilog",
     "input:libmmi-client",
     "ipc:ipc_core",
+    "power_manager:power_ffrt",
     "sensor:sensor_interface_native",
   ]
 }
diff --git a/test/systemtest/BUILD.gn b/test/systemtest/BUILD.gn
index 5c26d8940cb16a3cff76c611589698c0d6c33b7d..08ff2c2937d74d952d24f5642a99a2506c662577 100644
--- a/test/systemtest/BUILD.gn
+++ b/test/systemtest/BUILD.gn
@@ -36,10 +36,12 @@ deps_ex = [
   "ability_runtime:ability_manager",
   "bundle_framework:appexecfwk_base",
   "bundle_framework:appexecfwk_core",
-  "common_event_service:cesfwk_innerkits",
   "c_utils:utils",
+  "common_event_service:cesfwk_innerkits",
+  "ffrt:libffrt",
   "hilog:libhilog",
   "ipc:ipc_core",
+  "power_manager:power_ffrt",
   "safwk:system_ability_fwk",
   "samgr:samgr_proxy",
   "sensor:sensor_interface_native",
diff --git a/test/unittest/BUILD.gn b/test/unittest/BUILD.gn
index 3815159c65dcb600bf7d45cb6e79ea5b2a5ceb97..01c8edce28294a6acbee331a0258e44e063cf278 100644
--- a/test/unittest/BUILD.gn
+++ b/test/unittest/BUILD.gn
@@ -52,15 +52,17 @@ deps_ex = [
   "ability_base:base",
   "ability_base:want",
   "ability_runtime:ability_manager",
-  "config_policy:configpolicy_util",
+  "c_utils:utils",
   "common_event_service:cesfwk_innerkits",
-  "ipc:ipc_core",
+  "config_policy:configpolicy_util",
+  "ffrt:libffrt",
   "hilog:libhilog",
+  "input:libmmi-client",
+  "ipc:ipc_core",
+  "power_manager:power_ffrt",
   "safwk:system_ability_fwk",
   "samgr:samgr_proxy",
   "sensor:sensor_interface_native",
-  "c_utils:utils",
-  "input:libmmi-client",
 ]
 
 defs = [ "POWER_GTEST" ]
diff --git a/test/unittest/src/servicetest/BUILD.gn b/test/unittest/src/servicetest/BUILD.gn
index b48da571662cab4e6a51801bf1245960b10ef8d4..ebe33ace9d56d49f5d320896c86948864803d94d 100644
--- a/test/unittest/src/servicetest/BUILD.gn
+++ b/test/unittest/src/servicetest/BUILD.gn
@@ -47,13 +47,15 @@ deps_ex = [
   "ability_base:base",
   "ability_base:want",
   "ability_runtime:ability_manager",
+  "c_utils:utils",
   "common_event_service:cesfwk_innerkits",
-  "ipc:ipc_core",
+  "ffrt:libffrt",
   "hilog:libhilog",
+  "ipc:ipc_core",
+  "power_manager:power_ffrt",
   "safwk:system_ability_fwk",
   "samgr:samgr_proxy",
   "sensor:sensor_interface_native",
-  "c_utils:utils",
 ]
 
 ##############################native_test##########################################