diff --git a/state_manager/service/native/src/display_power_mgr_service.cpp b/state_manager/service/native/src/display_power_mgr_service.cpp
index 5b15f587a51cf334444549c1a41ec46b5e312026..7cb9826f5dedd96803c03f6427fbf7bf362c90eb 100644
--- a/state_manager/service/native/src/display_power_mgr_service.cpp
+++ b/state_manager/service/native/src/display_power_mgr_service.cpp
@@ -164,6 +164,7 @@ void DisplayPowerMgrService::AutoBrightnessSettingUpdateFunc(const std::string&
     bool isSettingEnable = GetSettingAutoBrightness(key);
     bool isSystemEnable = DelayedSpSingleton<DisplayPowerMgrService>::GetInstance()->IsAutoAdjustBrightness();
     if (isSettingEnable == isSystemEnable) {
+        DISPLAY_HILOGI(FEAT_BRIGHTNESS, "no need change autoAdjustSwitch");
         return;
     }
     DISPLAY_HILOGI(FEAT_BRIGHTNESS, "AutoBrightnessSettingUpdateFunc isSettingEnable=%{public}d", isSettingEnable);
@@ -431,6 +432,7 @@ bool DisplayPowerMgrService::AutoAdjustBrightness(bool enable)
             return true;
         }
         autoBrightness_ = true;
+        BrightnessManager::Get().AutoAdjustBrightness(true);
     } else {
         DISPLAY_HILOGD(FEAT_BRIGHTNESS, "AutoAdjustBrightness disable");
         if (!autoBrightness_) {
@@ -438,6 +440,7 @@ bool DisplayPowerMgrService::AutoAdjustBrightness(bool enable)
             return true;
         }
         autoBrightness_ = false;
+        BrightnessManager::Get().AutoAdjustBrightness(false);
     }
     SetSettingAutoBrightness(enable);
     return true;
diff --git a/state_manager/test/unittest/src/display_power_mgr_brightness_test.cpp b/state_manager/test/unittest/src/display_power_mgr_brightness_test.cpp
index c21367aa02fb9788001b71e2844cb370f65d0fe1..a141be1318f09774e3c7a29067c085303fb55d5e 100644
--- a/state_manager/test/unittest/src/display_power_mgr_brightness_test.cpp
+++ b/state_manager/test/unittest/src/display_power_mgr_brightness_test.cpp
@@ -846,9 +846,13 @@ HWTEST_F(DisplayPowerMgrBrightnessTest, DisplayPowerMgrAdjustBrightness002, Test
 {
     DISPLAY_HILOGI(LABEL_TEST, "DisplayPowerMgrAdjustBrightness002: fun is start");
     bool ret = DisplayPowerMgrClient::GetInstance().AutoAdjustBrightness(true);
+    //waiting to find correct isSettingEnable value
+    usleep(50000);
     if (ret) {
         DISPLAY_HILOGI(LABEL_TEST, "DisplayPowerMgrAdjustBrightness002: is supported");
         ret = DisplayPowerMgrClient::GetInstance().AutoAdjustBrightness(false);
+        //waiting to find correct isSettingEnable value
+        usleep(50000);
         EXPECT_TRUE(ret);
     } else {
         DISPLAY_HILOGI(LABEL_TEST, "DisplayPowerMgrAdjustBrightness002: is not supported");
@@ -867,8 +871,12 @@ HWTEST_F(DisplayPowerMgrBrightnessTest, DisplayPowerMgrAdjustBrightness003, Test
     DISPLAY_HILOGI(LABEL_TEST, "DisplayPowerMgrAdjustBrightness003: fun is start");
     bool ret = DisplayPowerMgrClient::GetInstance().IsAutoAdjustBrightness();
     DisplayPowerMgrClient::GetInstance().AutoAdjustBrightness(false);
+    //waiting to find correct isSettingEnable value
+    usleep(50000);
     EXPECT_EQ(DisplayPowerMgrClient::GetInstance().IsAutoAdjustBrightness(), false);
     DisplayPowerMgrClient::GetInstance().AutoAdjustBrightness(ret);
+    //waiting to find correct isSettingEnable value
+    usleep(50000);
     DISPLAY_HILOGI(LABEL_TEST, "DisplayPowerMgrAdjustBrightness003: fun is end");
 }
 
@@ -883,6 +891,12 @@ HWTEST_F(DisplayPowerMgrBrightnessTest, DisplayPowerMgrScreenBrightnessEquality0
     DISPLAY_HILOGI(LABEL_TEST, "DisplayPowerMgrScreenBrightnessEquality001: fun is start");
     uint32_t deviceBrightness1 = DisplayPowerMgrClient::GetInstance().GetDeviceBrightness();
     DisplayPowerMgrClient::GetInstance().SetDisplayState(DisplayState::DISPLAY_OFF);
+    DisplayPowerMgrClient::GetInstance().AutoAdjustBrightness(true);
+    //waiting to find correct isSettingEnable value
+    usleep(50000);
+    DisplayPowerMgrClient::GetInstance().AutoAdjustBrightness(false);
+    //waiting to find correct isSettingEnable value
+    usleep(50000);
     DisplayPowerMgrClient::GetInstance().SetDisplayState(DisplayState::DISPLAY_ON);
     uint32_t deviceBrightness2 = DisplayPowerMgrClient::GetInstance().GetDeviceBrightness();
     EXPECT_EQ(deviceBrightness1, deviceBrightness2);