diff --git a/runtime/main/extend/systemplugin/napi/index.js b/runtime/main/extend/systemplugin/napi/index.js
index bbd079a63d2e5b7fb51bb0465dfde5476a90f3a8..d7b7df0e7696e5b7a35d7f9c3d518da2020b4c80 100644
--- a/runtime/main/extend/systemplugin/napi/index.js
+++ b/runtime/main/extend/systemplugin/napi/index.js
@@ -188,7 +188,6 @@ import { mockDefaultAppManager } from './ohos_bundle_defaultAppManager'
 import { mockKeyEvent } from './ohos_multimodalInput_keyEvent'
 import { mockMouseEvent } from './ohos_multimodalInput_mouseEvent'
 import { mockTouchEvent } from './ohos_multimodalInput_touchEvent'
-import { mockUiAppearance } from './ohos_uiAppearance'
 import { mockContinationManager } from './ohos_continuation_continuationManager'
 import { mockUiTest } from './ohos_uitest'
 import { mockBuffer } from './ohos_buffer'
@@ -201,8 +200,6 @@ export function mockRequireNapiFun() {
     switch (args[0]) {
       case "file":
         return mockFile();
-      case "uiAppearance":
-        return mockUiAppearance();
       case "resourceManager":
         return mockResourceManager();
       case "document":
diff --git a/runtime/main/extend/systemplugin/napi/ohos_uiAppearance.js b/runtime/main/extend/systemplugin/napi/ohos_uiAppearance.js
deleted file mode 100644
index 6930259584338163e795df6c64d53321c75a1bfb..0000000000000000000000000000000000000000
--- a/runtime/main/extend/systemplugin/napi/ohos_uiAppearance.js
+++ /dev/null
@@ -1,44 +0,0 @@
-/*
- * 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.
- */
-
-import { paramMock } from '../utils';
-
-export function mockUiAppearance() {
-    const DarkMode = {
-        ALWAYS_DARK: 0,
-        ALWAYS_LIGHT: 1
-    }
-    const uiAppearance = {
-        DarkMode,
-        setDarkMode: function (...args) {
-            console.warn("uiAppearance.setDarkMode interface mocked in the Previewer." +
-              " How this interface works on the Previewer may be different from that on a real device.")
-            const len = args.length;
-            if (len > 0 && typeof args[len - 1] === 'function') {
-                args[len - 1].call(this, paramMock.businessErrorMock);
-            } else {
-                return new Promise((resolve) => {
-                    resolve();
-                });
-            }
-        },
-        getDarkMode: function () {
-            console.warn("uiAppearance.getDarkMode interface mocked in the Previewer." +
-              " How this interface works on the Previewer may be different from that on a real device.")
-            return DarkMode;
-        }
-    }
-    return uiAppearance;
-}