diff --git a/interfaces/innerkits/wm/window.h b/interfaces/innerkits/wm/window.h
index 34cfaf43..620a76b1 100644
--- a/interfaces/innerkits/wm/window.h
+++ b/interfaces/innerkits/wm/window.h
@@ -455,6 +455,14 @@ public:
      * @return std::shared_ptr<Media::PixelMap> snapshot pixel
      */
     virtual std::shared_ptr<Media::PixelMap> Snapshot() = 0;
+
+    /**
+     * @brief Handle and notify memory level.
+     *
+     * @param level memory level
+     * @return the error code of window
+     */
+    virtual WMError NotifyMemoryLevel(int32_t level) const = 0;
 };
 }
 }
diff --git a/interfaces/innerkits/wm/window_scene.h b/interfaces/innerkits/wm/window_scene.h
index cbaa0bf6..a355b500 100644
--- a/interfaces/innerkits/wm/window_scene.h
+++ b/interfaces/innerkits/wm/window_scene.h
@@ -137,6 +137,14 @@ public:
      */
     std::string GetContentInfo() const;
 
+    /**
+     * @brief Handle and notify memory.
+     *
+     * @param level memory level
+     * @return the error code of window
+     */
+    WMError NotifyMemoryLevel(int32_t level) const;
+
 public:
     static const DisplayId DEFAULT_DISPLAY_ID = 0;
     static const std::string MAIN_WINDOW_ID;
diff --git a/wm/include/window_impl.h b/wm/include/window_impl.h
index 253d73a4..605775d7 100644
--- a/wm/include/window_impl.h
+++ b/wm/include/window_impl.h
@@ -249,6 +249,7 @@ public:
     virtual std::shared_ptr<Media::PixelMap> Snapshot() override;
     void PostListenerTask(ListenerTaskCallback &&callback, Priority priority = Priority::LOW,
         const std::string taskName = "");
+    virtual WMError NotifyMemoryLevel(int32_t level) const override;
 
 private:
     inline std::vector<sptr<IWindowLifeCycle>> GetLifecycleListeners()
diff --git a/wm/src/window_impl.cpp b/wm/src/window_impl.cpp
index 9b48b175..75d69724 100755
--- a/wm/src/window_impl.cpp
+++ b/wm/src/window_impl.cpp
@@ -2803,5 +2803,16 @@ WMError WindowImpl::SetBackdropBlurStyle(WindowBlurStyle blurStyle)
     }
     return WMError::WM_OK;
 }
+
+WMError WindowImpl::NotifyMemoryLevel(int32_t level) const
+{
+    if (uiContent_ == nullptr) {
+        WLOGFE("[Client] Window %{public}s notify memory level failed, because uicontent is null.", name_.c_str());
+        return WMError::WM_ERROR_NULLPTR;
+    }
+    // notify memory level
+    uiContent_->NotifyMemoryLevel(level);
+    return WMError::WM_OK;
+}
 } // namespace Rosen
 } // namespace OHOS
diff --git a/wm/src/window_scene.cpp b/wm/src/window_scene.cpp
index c959f9dd..66ddcd0f 100644
--- a/wm/src/window_scene.cpp
+++ b/wm/src/window_scene.cpp
@@ -92,7 +92,7 @@ const sptr<Window>& WindowScene::GetMainWindow() const
 std::vector<sptr<Window>> WindowScene::GetSubWindow()
 {
     if (mainWindow_ == nullptr) {
-        WLOGFE("WindowScene mainWindow_ is nullptr");
+        WLOGFE("Get sub window failed, because main window is null");
         return std::vector<sptr<Window>>();
     }
     uint32_t parentId = mainWindow_->GetWindowId();
@@ -103,6 +103,7 @@ WMError WindowScene::GoForeground(uint32_t reason)
 {
     WLOGFI("GoForeground reason:%{public}u", reason);
     if (mainWindow_ == nullptr) {
+        WLOGFE("Go foreground failed, because main window is null");
         return WMError::WM_ERROR_NULLPTR;
     }
     return mainWindow_->Show(reason);
@@ -112,6 +113,7 @@ WMError WindowScene::GoBackground(uint32_t reason)
 {
     WLOGFI("GoBackground reason:%{public}u", reason);
     if (mainWindow_ == nullptr) {
+        WLOGFE("Go background failed, because main window is null");
         return WMError::WM_ERROR_NULLPTR;
     }
     return mainWindow_->Hide(reason);
@@ -125,7 +127,7 @@ WMError WindowScene::GoDestroy()
 
     WMError ret = mainWindow_->Destroy();
     if (ret != WMError::WM_OK) {
-        WLOGFE("WindowScene GoDestroy Failed Name: %{public}s", mainWindow_->GetWindowName().c_str());
+        WLOGFE("WindowScene go destroy failed name: %{public}s", mainWindow_->GetWindowName().c_str());
         return ret;
     }
     mainWindow_ = nullptr;
@@ -135,6 +137,7 @@ WMError WindowScene::GoDestroy()
 WMError WindowScene::OnNewWant(const AAFwk::Want& want)
 {
     if (mainWindow_ == nullptr) {
+        WLOGFE("On new want failed, because main window is null");
         return WMError::WM_ERROR_NULLPTR;
     }
     mainWindow_->OnNewWant(want);
@@ -144,6 +147,7 @@ WMError WindowScene::OnNewWant(const AAFwk::Want& want)
 WMError WindowScene::SetSystemBarProperty(WindowType type, const SystemBarProperty& property) const
 {
     if (mainWindow_ == nullptr) {
+        WLOGFE("Set systembar property failed, because main window is null");
         return WMError::WM_ERROR_NULLPTR;
     }
     return mainWindow_->SetSystemBarProperty(type, property);
@@ -152,6 +156,7 @@ WMError WindowScene::SetSystemBarProperty(WindowType type, const SystemBarProper
 WMError WindowScene::RequestFocus() const
 {
     if (mainWindow_ == nullptr) {
+        WLOGFE("Request focus failed, because main window is null");
         return WMError::WM_ERROR_NULLPTR;
     }
     return mainWindow_->RequestFocus();
@@ -160,7 +165,7 @@ WMError WindowScene::RequestFocus() const
 void WindowScene::UpdateConfiguration(const std::shared_ptr<AppExecFwk::Configuration>& configuration)
 {
     if (mainWindow_ == nullptr) {
-        WLOGFE("mainWindow_ is null");
+        WLOGFE("Update configuration failed, because main window is null");
         return;
     }
     WLOGFI("notify mainWindow winId:%{public}u", mainWindow_->GetWindowId());
@@ -170,10 +175,19 @@ void WindowScene::UpdateConfiguration(const std::shared_ptr<AppExecFwk::Configur
 std::string WindowScene::GetContentInfo() const
 {
     if (mainWindow_ == nullptr) {
-        WLOGFE("WindowScene::GetContentInfo mainWindow_ is null");
+        WLOGFE("Get content info failed, because main window is null");
         return "";
     }
     return mainWindow_->GetContentInfo();
 }
+
+WMError WindowScene::NotifyMemoryLevel(int32_t level) const
+{
+    if (mainWindow_ == nullptr) {
+        WLOGFE("Notify memory level failed, because main window is null");
+        return WMError::WM_ERROR_NULLPTR;
+    }
+    return mainWindow_->NotifyMemoryLevel(level);
+}
 } // namespace Rosen
 } // namespace OHOS
diff --git a/wm/test/unittest/window_scene_test.cpp b/wm/test/unittest/window_scene_test.cpp
index 69cd205d..1d0c0ea1 100644
--- a/wm/test/unittest/window_scene_test.cpp
+++ b/wm/test/unittest/window_scene_test.cpp
@@ -216,6 +216,35 @@ HWTEST_F(WindowSceneTest, RequestFocus01, Function | SmallTest | Level2)
     sptr<WindowScene> scene = new WindowScene();
     ASSERT_EQ(WMError::WM_ERROR_NULLPTR, scene->RequestFocus());
 }
+
+/**
+ * @tc.name: NotifyMemoryLevel01
+ * @tc.desc: NotifyMemoryLevel without mainWindow
+ * @tc.type: FUNC
+ */
+HWTEST_F(WindowSceneTest, NotifyMemoryLevel01, Function | SmallTest | Level2)
+{
+    sptr<WindowScene> scene = new WindowScene();
+    int32_t level = 0;
+    ASSERT_EQ(WMError::WM_ERROR_NULLPTR, scene->NotifyMemoryLevel(level));
+}
+
+/**
+ * @tc.name: NotifyMemoryLevel02
+ * @tc.desc: NotifyMemoryLevel with level
+ * @tc.type: FUNC
+ */
+HWTEST_F(WindowSceneTest, NotifyMemoryLevel02, Function | SmallTest | Level2)
+{
+    DisplayId displayId = 0;
+    std::unique_ptr<Mocker> m = std::make_unique<Mocker>();
+    sptr<IWindowLifeCycle> listener = nullptr;
+    sptr<WindowScene> scene = new WindowScene();
+    sptr<WindowOption> option = new WindowOption();
+    EXPECT_CALL(m->Mock(), CreateWindow(_, _, _)).Times(1).WillOnce(Return(new WindowImpl(option)));
+    ASSERT_EQ(WMError::WM_OK, scene->Init(displayId, abilityContext_, listener));
+    ASSERT_EQ(WMError::WM_ERROR_NULLPTR, scene->NotifyMemoryLevel(0)); // ui content is null
+}
 }
 } // namespace Rosen
 } // namespace OHOS
\ No newline at end of file