diff --git a/wm/test/systemtest/BUILD.gn b/wm/test/systemtest/BUILD.gn
index f2b659cc..8bd9f4cd 100644
--- a/wm/test/systemtest/BUILD.gn
+++ b/wm/test/systemtest/BUILD.gn
@@ -19,6 +19,7 @@ group("systemtest") {
   testonly = true
 
   deps = [
+    ":wm_window_effect_test",
     ":wm_window_focus_test",
     ":wm_window_gamut_test",
     ":wm_window_immersive_test",
@@ -42,6 +43,17 @@ ohos_systemtest("wm_window_layout_test") {
 
 ## SystemTest wm_window_layout_test }}}
 
+## SystemTest wm_window_effect_test {{{
+ohos_systemtest("wm_window_effect_test") {
+  module_out_path = module_out_path
+
+  sources = [ "window_effect_test.cpp" ]
+
+  deps = [ ":wm_systemtest_common" ]
+}
+
+## SystemTest wm_window_effect_test }}}
+
 ## SystemTest wm_window_multi_ability_test {{{
 ohos_systemtest("wm_window_multi_ability_test") {
   module_out_path = module_out_path
diff --git a/wm/test/systemtest/window_effect_test.cpp b/wm/test/systemtest/window_effect_test.cpp
new file mode 100644
index 00000000..eb1e0040
--- /dev/null
+++ b/wm/test/systemtest/window_effect_test.cpp
@@ -0,0 +1,92 @@
+/*
+ * Copyright (c) 2022 Huawei Device Co., Ltd.
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+// gtest
+#include <gtest/gtest.h>
+#include "window_test_utils.h"
+using namespace testing;
+using namespace testing::ext;
+
+namespace OHOS {
+namespace Rosen {
+using utils = WindowTestUtils;
+class WindowEffectTest : public testing::Test {
+public:
+    static void SetUpTestCase();
+    static void TearDownTestCase();
+    virtual void SetUp() override;
+    virtual void TearDown() override;
+    utils::TestWindowInfo fullScreenAppInfo_;
+};
+
+void WindowEffectTest::SetUpTestCase()
+{
+}
+
+void WindowEffectTest::TearDownTestCase()
+{
+}
+
+void WindowEffectTest::SetUp()
+{
+    fullScreenAppInfo_ = {
+            .name = "FullWindow",
+            .rect = utils::customAppRect_,
+            .type = WindowType::WINDOW_TYPE_APP_MAIN_WINDOW,
+            .mode = WindowMode::WINDOW_MODE_FULLSCREEN,
+            .needAvoid = false,
+            .parentLimit = false,
+            .parentName = "",
+    };
+}
+
+void WindowEffectTest::TearDown()
+{
+}
+
+namespace {
+/**
+ * @tc.name: WindowEffect01
+ * @tc.desc: SetWindowBackgroundBlur | GetWindowBackgroundBlur
+ * @tc.type: FUNC
+ * @tc.require:
+ */
+HWTEST_F(WindowEffectTest, WindowEffect01, Function | MediumTest | Level3)
+{
+    const sptr<Window>& window = utils::CreateTestWindow(fullScreenAppInfo_);
+
+    ASSERT_EQ(WMError::WM_OK, window->SetWindowBackgroundBlur(WindowBlurLevel::WINDOW_BLUR_LOW));
+    ASSERT_EQ(WindowBlurLevel::WINDOW_BLUR_LOW, window->GetWindowBackgroundBlur());
+    window->Destroy();
+}
+
+/**
+ * @tc.name: WindowEffect02
+ * @tc.desc: SetAlpha | GetAlpha
+ * @tc.type: FUNC
+ * @tc.require:
+ */
+HWTEST_F(WindowEffectTest, WindowEffect02, Function | MediumTest | Level3)
+{
+    const sptr<Window>& window = utils::CreateTestWindow(fullScreenAppInfo_);
+
+    ASSERT_EQ(WMError::WM_OK, window->SetAlpha(1.0f));
+    ASSERT_EQ(1.0f, window->GetAlpha());
+
+    window->Destroy();
+}
+} // namespace
+} // namespace Rosen
+} // namespace OHOS
diff --git a/wm/test/unittest/BUILD.gn b/wm/test/unittest/BUILD.gn
index 9b37f01d..8a3d0737 100644
--- a/wm/test/unittest/BUILD.gn
+++ b/wm/test/unittest/BUILD.gn
@@ -20,6 +20,7 @@ group("unittest") {
   deps = [
     ":avoid_area_controller_test",
     ":wm_input_transfer_station_test",
+    ":wm_window_effect_test",
     ":wm_window_impl_test",
     ":wm_window_input_channel_test",
     ":wm_window_option_test",
@@ -51,6 +52,17 @@ ohos_unittest("wm_window_impl_test") {
 
 ## UnitTest wm_window_impl_test }}}
 
+## UnitTest wm_window_effect_test {{{
+ohos_unittest("wm_window_effect_test") {
+  module_out_path = module_out_path
+
+  sources = [ "window_effect_test.cpp" ]
+
+  deps = [ ":wm_unittest_common" ]
+}
+
+## UnitTest wm_window_effect_test }}}
+
 ## UnitTest wm_input_transfer_station_test {{{
 ohos_unittest("wm_input_transfer_station_test") {
   module_out_path = module_out_path
diff --git a/wm/test/unittest/mock_window_adapter.h b/wm/test/unittest/mock_window_adapter.h
index 117dfea6..3535378f 100644
--- a/wm/test/unittest/mock_window_adapter.h
+++ b/wm/test/unittest/mock_window_adapter.h
@@ -29,6 +29,8 @@ public:
     MOCK_METHOD1(RemoveWindow, WMError(uint32_t windowId));
     MOCK_METHOD0(ClearWindowAdapter, void());
     MOCK_METHOD1(DestroyWindow, WMError(uint32_t windowId));
+    MOCK_METHOD2(SetWindowBackgroundBlur, WMError(uint32_t windowId, WindowBlurLevel level));
+    MOCK_METHOD2(SetAlpha, WMError(uint32_t windowId, float alpha));
     MOCK_METHOD2(SaveAbilityToken, WMError(const sptr<IRemoteObject>& abilityToken, uint32_t windowId));
     MOCK_METHOD3(SetSystemBarProperty, WMError(uint32_t windowId, WindowType type, const SystemBarProperty& property));
 };
diff --git a/wm/test/unittest/window_effect_test.cpp b/wm/test/unittest/window_effect_test.cpp
new file mode 100644
index 00000000..e8dc851b
--- /dev/null
+++ b/wm/test/unittest/window_effect_test.cpp
@@ -0,0 +1,179 @@
+/*
+ * Copyright (c) 2022 Huawei Device Co., Ltd.
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#include "window_effect_test.h"
+
+using namespace testing;
+using namespace testing::ext;
+
+namespace OHOS {
+namespace Rosen {
+void WindowEffectTest::SetUpTestCase()
+{
+}
+
+void WindowEffectTest::TearDownTestCase()
+{
+}
+
+void WindowEffectTest::SetUp()
+{
+}
+
+void WindowEffectTest::TearDown()
+{
+}
+
+namespace {
+/**
+ * @tc.name: WindowEffect01
+ * @tc.desc: windowOption: set window background blur / get window background blur
+ * @tc.type: FUNC
+ */
+HWTEST_F(WindowEffectTest, WindowEffect01, Function | SmallTest | Level2)
+{
+    sptr<WindowOption> option = new WindowOption();
+    option->SetWindowBackgroundBlur(WindowBlurLevel::WINDOW_BLUR_LOW);
+    ASSERT_EQ(WindowBlurLevel::WINDOW_BLUR_LOW, option->GetWindowBackgroundBlur());
+    option->SetWindowBackgroundBlur(WindowBlurLevel::WINDOW_BLUR_MEDIUM);
+    ASSERT_EQ(WindowBlurLevel::WINDOW_BLUR_MEDIUM, option->GetWindowBackgroundBlur());
+    option->SetWindowBackgroundBlur(WindowBlurLevel::WINDOW_BLUR_HIGH);
+    ASSERT_EQ(WindowBlurLevel::WINDOW_BLUR_HIGH, option->GetWindowBackgroundBlur());
+    option->SetWindowBackgroundBlur(WindowBlurLevel::WINDOW_BLUR_OFF);
+    ASSERT_EQ(WindowBlurLevel::WINDOW_BLUR_OFF, option->GetWindowBackgroundBlur());
+}
+
+/**
+ * @tc.name: WindowEffect02
+ * @tc.desc: windowOption: set window alpha/ get window alpha
+ * @tc.type: FUNC
+ */
+HWTEST_F(WindowEffectTest, WindowEffect02, Function | SmallTest | Level2)
+{
+    sptr<WindowOption> option = new WindowOption();
+    option->SetAlpha(0.0f);
+    ASSERT_EQ(0.0f, option->GetAlpha());
+    option->SetAlpha(0.5f);
+    ASSERT_EQ(0.5f, option->GetAlpha());
+    option->SetAlpha(1.0f);
+    ASSERT_EQ(1.0f, option->GetAlpha());
+}
+
+/**
+ * @tc.name: WindowEffect03
+ * @tc.desc: WindowImp: Create window with no default option, get and check Property
+ * @tc.type: FUNC
+ */
+HWTEST_F(WindowEffectTest, WindowEffect03, Function | SmallTest | Level2)
+{
+    std::unique_ptr<Mocker> m = std::make_unique<Mocker>();
+    sptr<WindowOption> option = new WindowOption();
+    option->SetWindowBackgroundBlur(WindowBlurLevel::WINDOW_BLUR_LOW);
+    sptr<WindowImpl> window = new WindowImpl(option);
+    EXPECT_CALL(m->Mock(), CreateWindow(_, _, _, _)).Times(1).WillOnce(Return(WMError::WM_OK));
+    ASSERT_EQ(WMError::WM_OK, window->Create(""));
+
+    ASSERT_EQ(WindowBlurLevel::WINDOW_BLUR_LOW, window->GetWindowBackgroundBlur());
+
+    EXPECT_CALL(m->Mock(), DestroyWindow(_)).Times(1).WillOnce(Return(WMError::WM_OK));
+    ASSERT_EQ(WMError::WM_OK, window->Destroy());
+}
+
+/**
+ * @tc.name: WindowEffect04
+ * @tc.desc: Create window with no default option, get and check Property
+ * @tc.type: FUNC
+ */
+HWTEST_F(WindowEffectTest, WindowEffect04, Function | SmallTest | Level2)
+{
+    std::unique_ptr<Mocker> m = std::make_unique<Mocker>();
+    sptr<WindowOption> option = new WindowOption();
+    option->SetAlpha(0.1f);
+
+    sptr<WindowImpl> window = new WindowImpl(option);
+    EXPECT_CALL(m->Mock(), CreateWindow(_, _, _, _)).Times(1).WillOnce(Return(WMError::WM_OK));
+    ASSERT_EQ(WMError::WM_OK, window->Create(""));
+
+    ASSERT_EQ(0.1f, window->GetAlpha());
+
+    EXPECT_CALL(m->Mock(), DestroyWindow(_)).Times(1).WillOnce(Return(WMError::WM_OK));
+    ASSERT_EQ(WMError::WM_OK, window->Destroy());
+}
+
+/**
+ * @tc.name: WindowEffect05
+ * @tc.desc: set window effect parameters throw window, and check parameters.
+ * @tc.type: FUNC
+ */
+HWTEST_F(WindowEffectTest, WindowEffect05, Function | SmallTest | Level2)
+{
+    std::unique_ptr<Mocker> m = std::make_unique<Mocker>();
+    sptr<WindowOption> option = new WindowOption();
+    sptr<WindowImpl> window = new WindowImpl(option);
+
+    EXPECT_CALL(m->Mock(), CreateWindow(_, _, _, _)).Times(1).WillOnce(Return(WMError::WM_OK));
+    ASSERT_EQ(WMError::WM_OK, window->Create(""));
+
+    EXPECT_CALL(m->Mock(), SetWindowBackgroundBlur(_, _)).Times(1).WillOnce(Return(WMError::WM_OK));
+    ASSERT_EQ(WMError::WM_OK, window->SetWindowBackgroundBlur(WindowBlurLevel::WINDOW_BLUR_LOW));
+    ASSERT_EQ(WindowBlurLevel::WINDOW_BLUR_LOW, window->GetWindowBackgroundBlur());
+
+    EXPECT_CALL(m->Mock(), DestroyWindow(_)).Times(1).WillOnce(Return(WMError::WM_OK));
+    window->Destroy();
+}
+
+/**
+ * @tc.name: WindowEffect06
+ * @tc.desc: set window effect parameters throw window, and check parameters.
+ * @tc.type: FUNC
+ */
+HWTEST_F(WindowEffectTest, WindowEffect06, Function | SmallTest | Level2)
+{
+    std::unique_ptr<Mocker> m = std::make_unique<Mocker>();
+    sptr<WindowOption> option = new WindowOption();
+    sptr<WindowImpl> window = new WindowImpl(option);
+
+    EXPECT_CALL(m->Mock(), CreateWindow(_, _, _, _)).Times(1).WillOnce(Return(WMError::WM_OK));
+    ASSERT_EQ(WMError::WM_OK, window->Create(""));
+    EXPECT_CALL(m->Mock(), SetAlpha(_, _)).Times(1).WillOnce(Return(WMError::WM_OK));
+    ASSERT_EQ(WMError::WM_OK, window->SetAlpha(0.1f));
+    ASSERT_EQ(0.1f, window->GetAlpha());
+
+    EXPECT_CALL(m->Mock(), DestroyWindow(_)).Times(1).WillOnce(Return(WMError::WM_OK));
+    window->Destroy();
+}
+
+/**
+ * @tc.name: WindowEffect07
+ * @tc.desc: WindowImp: Create window with default option, get and check Property
+ * @tc.type: FUNC
+ */
+HWTEST_F(WindowEffectTest, WindowEffect07, Function | SmallTest | Level2)
+{
+    std::unique_ptr<Mocker> m = std::make_unique<Mocker>();
+    sptr<WindowOption> option = new WindowOption();
+    sptr<WindowImpl> window = new WindowImpl(option);
+    EXPECT_CALL(m->Mock(), CreateWindow(_, _, _, _)).Times(1).WillOnce(Return(WMError::WM_OK));
+    ASSERT_EQ(WMError::WM_OK, window->Create(""));
+
+    ASSERT_EQ(WindowBlurLevel::WINDOW_BLUR_OFF, window->GetWindowBackgroundBlur());
+    ASSERT_EQ(1.0f, window->GetAlpha());
+
+    EXPECT_CALL(m->Mock(), DestroyWindow(_)).Times(1).WillOnce(Return(WMError::WM_OK));
+    ASSERT_EQ(WMError::WM_OK, window->Destroy());
+}
+}
+} // namespace Rosen
+} // namespace OHOS
diff --git a/wm/test/unittest/window_effect_test.h b/wm/test/unittest/window_effect_test.h
new file mode 100644
index 00000000..b904d9dc
--- /dev/null
+++ b/wm/test/unittest/window_effect_test.h
@@ -0,0 +1,37 @@
+/*
+ * Copyright (c) 2021 Huawei Device Co., Ltd.
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef FRAMEWORKS_WM_TEST_UT_WINDOW_Effect_TEST_H
+#define FRAMEWORKS_WM_TEST_UT_WINDOW_Effect_TEST_H
+
+#include <gtest/gtest.h>
+#include "mock_window_adapter.h"
+#include "singleton_mocker.h"
+#include "window_impl.h"
+
+namespace OHOS {
+namespace Rosen {
+using Mocker = SingletonMocker<WindowAdapter, MockWindowAdapter>;
+class WindowEffectTest : public testing::Test {
+public:
+    static void SetUpTestCase();
+    static void TearDownTestCase();
+    virtual void SetUp() override;
+    virtual void TearDown() override;
+};
+} // namespace ROSEN
+} // namespace OHOS
+
+#endif // FRAMEWORKS_WM_TEST_UT_WINDOW_Effect_TEST_H
\ No newline at end of file
diff --git a/wmserver/src/window_controller.cpp b/wmserver/src/window_controller.cpp
index d04d2fb2..add1786e 100644
--- a/wmserver/src/window_controller.cpp
+++ b/wmserver/src/window_controller.cpp
@@ -257,7 +257,6 @@ WMError WindowController::SetWindowBackgroundBlur(uint32_t windowId, WindowBlurL
     if (srcLevel == dstLevel) {
         return WMError::WM_OK;
     }
-    node->SetWindowBackgroundBlur(dstLevel);
 
     FlushWindowInfo(windowId);
     return WMError::WM_OK;