diff --git a/api/@ohos.application.ServiceExtension.d.ts b/api/@ohos.application.ServiceExtension.d.ts
deleted file mode 100644
index 8ef9102c89638a0bb3a484ca64d1b2c43c1df24d..0000000000000000000000000000000000000000
--- a/api/@ohos.application.ServiceExtension.d.ts
+++ /dev/null
@@ -1,126 +0,0 @@
-/*
- * Copyright (c) 2021-2022 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 rpc from "./@ohos.rpc";
-import ServiceExtensionContext from "./application/ServiceExtensionContext";
-import Want from './@ohos.application.Want';
-import { Configuration } from './@ohos.application.Configuration';
-
-/**
- * class of service extension.
- *
- * @since 9
- * @syscap SystemCapability.Ability.AbilityRuntime.Core
- * @systemapi hide for inner use.
- * @StageModelOnly
- */
-export default class ServiceExtension {
-    /**
-     * Indicates service extension context.
-     *
-     * @since 9
-     * @syscap SystemCapability.Ability.AbilityRuntime.Core
-     * @systemapi hide for inner use.
-     * @StageModelOnly
-     */
-    context: ServiceExtensionContext;
-
-    /**
-     * Called back when a service extension is started for initialization.
-     *
-     * @since 9
-     * @syscap SystemCapability.Ability.AbilityRuntime.Core
-     * @param want Indicates the want of created service extension.
-     * @systemapi hide for inner use.
-     * @return -
-     * @StageModelOnly
-     */
-    onCreate(want: Want): void;
-
-    /**
-     * Called back before a service extension is destroyed.
-     *
-     * @since 9
-     * @syscap SystemCapability.Ability.AbilityRuntime.Core
-     * @systemapi hide for inner use.
-     * @return -
-     * @StageModelOnly
-     */
-    onDestroy(): void;
-
-    /**
-     * Called back when a service extension is started.
-     *
-     * @since 9
-     * @syscap SystemCapability.Ability.AbilityRuntime.Core
-     * @param want Indicates the want of service extension to start.
-     * @param startId Indicates the number of times the service extension has been started. The {@code startId} is
-     *     incremented by 1 every time the service extension is started. For example, if the service extension
-     *     has been started for six times.
-     * @systemapi hide for inner use.
-     * @return -
-     * @StageModelOnly
-     */
-    onRequest(want: Want, startId: number): void;
-
-    /**
-     * Called back when a service extension is first connected to an ability.
-     *
-     * @since 9
-     * @syscap SystemCapability.Ability.AbilityRuntime.Core
-     * @param want Indicates connection information about the Service ability.
-     * @systemapi hide for inner use.
-     * @return Returns the proxy of the Service ability.
-     * @StageModelOnly
-     */
-    onConnect(want: Want): rpc.RemoteObject;
-
-    /**
-     * Called back when all abilities connected to a service extension are disconnected.
-     *
-     * @since 9
-     * @syscap SystemCapability.Ability.AbilityRuntime.Core
-     * @param want Indicates disconnection information about the service extension.
-     * @systemapi hide for inner use.
-     * @return -
-     * @StageModelOnly
-     */
-    onDisconnect(want: Want): void;
-
-    /**
-     * Called when a new client attempts to connect to a service extension after all previous client connections to it
-     * are disconnected.
-     *
-     * @since 9
-     * @syscap SystemCapability.Ability.AbilityRuntime.Core
-     * @param want Indicates the want of the service extension being connected.
-     * @systemapi hide for inner use.
-     * @return -
-     * @StageModelOnly
-     */
-    onReconnect(want: Want): void;
-
-    /**
-     * Called when the system configuration is updated.
-     *
-     * @since 9
-     * @syscap SystemCapability.Ability.AbilityRuntime.Core
-     * @param config Indicates the updated configuration.
-     * @return -
-     * @StageModelOnly
-     */
-    onConfigurationUpdated(config: Configuration): void;
-}
-