diff --git a/api/@ohos.net.sharing.d.ts b/api/@ohos.net.sharing.d.ts
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+/*
+ * 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 {AsyncCallback, Callback} from "./basic";
+import {NetHandle} from "./@ohos.net.connection";
+
+/**
+ * Provides network sharing related interfaces.
+ *
+ * @since 9
+ * @syscap SystemCapability.Communication.NetManager.NetSharing
+ */
+declare namespace sharing {
+  /**
+   * Checks whether this device allows for network sharing.
+   *
+   * @param callback Returns {@code true} indicating network sharing is supported; returns {@code false} otherwise.
+   * @permission ohos.permission.CONNECTIVITY_INTERNAL
+   * @systemapi Hide this for inner system use.
+   */
+  function isSharingSupported(callback: AsyncCallback<boolean>): void;
+  function isSharingSupported(): Promise<boolean>;
+
+  /**
+   * Return the global network sharing state.
+   *
+   * @param callback Returns {@code true} indicating network sharing is running; returns {@code false} otherwise.
+   * @permission ohos.permission.CONNECTIVITY_INTERNAL
+   * @systemapi Hide this for inner system use.
+   */
+  function isSharing(callback: AsyncCallback<boolean>): void;
+  function isSharing(): Promise<boolean>;
+
+  /**
+   * Start network sharing for given type.
+   *
+   * @param type Enumeration of shareable interface types.
+   * @param callback Returns the result.
+   * @permission ohos.permission.CONNECTIVITY_INTERNAL
+   * @systemapi Hide this for inner system use.
+   */
+  function startSharing(type: SharingIfaceType, callback: AsyncCallback<void>): void;
+  function startSharing(type: SharingIfaceType): Promise<void>;
+
+  /**
+   * Stop network sharing for given type.
+   *
+   * @param type Enumeration of shareable interface types.
+   * @param callback Returns the result.
+   * @permission ohos.permission.CONNECTIVITY_INTERNAL
+   * @systemapi Hide this for inner system use.
+   */
+  function stopSharing(type: SharingIfaceType, callback: AsyncCallback<void>): void;
+  function stopSharing(type: SharingIfaceType): Promise<void>;
+
+  /**
+   * Obtains the number of downlink data bytes of the sharing network interfaces.
+   *
+   * @param callback Returns the number of downlink data bytes of the sharing network interfaces.
+   * @permission ohos.permission.CONNECTIVITY_INTERNAL
+   * @systemapi Hide this for inner system use.
+   */
+  function getStatsRxBytes(callback: AsyncCallback<number>): void;
+  function getStatsRxBytes(): Promise<number>;
+
+  /**
+   * Obtains the number of uplink data bytes of the sharing network interfaces.
+   *
+   * @param callback Returns the number of uplink data bytes of the sharing network interfaces.
+   * @permission ohos.permission.CONNECTIVITY_INTERNAL
+   * @systemapi Hide this for inner system use.
+   */
+  function getStatsTxBytes(callback: AsyncCallback<number>): void;
+  function getStatsTxBytes(): Promise<number>;
+
+  /**
+   * Obtains the number of total data bytes of the sharing network interfaces.
+   *
+   * @param callback Returns the number of total data bytes of the sharing network interfaces.
+   * @permission ohos.permission.CONNECTIVITY_INTERNAL
+   * @systemapi Hide this for inner system use.
+   */
+  function getStatsTotalBytes(callback: AsyncCallback<number>): void;
+  function getStatsTotalBytes(): Promise<number>;
+
+  /**
+   * Obtains the names of interfaces in each sharing state.
+   *
+   * @param state Is the network sharing state, include serving, can server and servering error states.
+   * @param callback Returns an array of interface names that meet this status.
+   * @permission ohos.permission.CONNECTIVITY_INTERNAL
+   * @systemapi Hide this for inner system use.
+   */
+  function getSharingIfaces(state: SharingIfaceState, callback: AsyncCallback<Array<string>>): void;
+  function getSharingIfaces(state: SharingIfaceState): Promise<Array<string>>;
+
+  /**
+   * Obtains the network sharing state for given type.
+   *
+   * @param type Is the enumeration of shareable interface types.
+   * @param callback Returns {@code SharingIfaceState}.
+   * @permission ohos.permission.CONNECTIVITY_INTERNAL
+   * @systemapi Hide this for inner system use.
+   */
+  function getSharingState(type: SharingIfaceType, callback: AsyncCallback<SharingIfaceState>): void;
+  function getSharingState(type: SharingIfaceType): Promise<SharingIfaceState>;
+
+  /**
+   * Get a list regular expression that defines any interface that can support network sharing.
+   *
+   * @param type Is the enumeration of shareable interface types.
+   * @param callback Returns an array of regular expression strings that define which interfaces
+   *        are considered to support network sharing.
+   * @permission ohos.permission.CONNECTIVITY_INTERNAL
+   * @systemapi Hide this for inner system use.
+   */
+  function getSharableRegexes(type: SharingIfaceType, callback: AsyncCallback<Array<string>>): void;
+  function getSharableRegexes(type: SharingIfaceType): Promise<Array<string>>;
+
+  /**
+   * Register a callback for the global network sharing state change.
+   *
+   * @permission ohos.permission.CONNECTIVITY_INTERNAL
+   * @systemapi Hide this for inner system use.
+   */
+  function on(type: 'sharingStateChange', callback: Callback<boolean>): void;
+
+  /**
+   * Unregister a callback for the global network sharing state change.
+   *
+   * @permission ohos.permission.CONNECTIVITY_INTERNAL
+   * @systemapi Hide this for inner system use.
+   */
+  function off(type: 'sharingStateChange', callback?: Callback<boolean>): void;
+
+  /**
+   * Register a callback for the interface network sharing state change.
+   *
+   * @permission ohos.permission.CONNECTIVITY_INTERNAL
+   * @systemapi Hide this for inner system use.
+   */
+  function on(type: 'interfaceSharingStateChange', callback: Callback<{ type: SharingIfaceType, iface: string, state: SharingIfaceState }>): void;
+
+  /**
+   * Unregister a callback for the interface network sharing state change.
+   *
+   * @permission ohos.permission.CONNECTIVITY_INTERNAL
+   * @systemapi Hide this for inner system use.
+   */
+  function off(type: 'interfaceSharingStateChange', callback?: Callback<{ type: SharingIfaceType, iface: string, state: SharingIfaceState }>): void;
+
+  /**
+   * Register a callback for the sharing upstream network change.
+   *
+   * @permission ohos.permission.CONNECTIVITY_INTERNAL
+   * @systemapi Hide this for inner system use.
+   */
+  function on(type: 'sharingUpstreamChange', callback: Callback<NetHandle>): void;
+
+  /**
+   * Unregister a callback for the sharing upstream network change.
+   *
+   * @permission ohos.permission.CONNECTIVITY_INTERNAL
+   * @systemapi Hide this for inner system use.
+   */
+  function off(type: 'sharingUpstreamChange', callback?: Callback<NetHandle>): void;
+
+  /**
+   * @systemapi Hide this for inner system use.
+   */
+  export enum SharingIfaceState {
+    /**
+     * Indicates the names of the NICs that are serving as network sharing.
+     */
+    SHARING_NIC_SERVING = 1,
+
+    /**
+     * Indicates the names of the NICs that can serve as network sharing.
+     */
+    SHARING_NIC_CAN_SERVER = 2,
+
+    /**
+     * Indicates the names of the NICs that serving error.
+     */
+    SHARING_NIC_ERROR = 3
+  }
+
+  /**
+   * @systemapi Hide this for inner system use.
+   */
+  export enum SharingIfaceType {
+    /**
+     * Network sharing type for Wi-Fi.
+     */
+    SHARING_WIFI = 0,
+
+    /**
+     * This type is not supported temporarily
+     */
+    SHARING_USB = 1,
+
+    /**
+     * Network sharing type for BLUETOOTH.
+     */
+    SHARING_BLUETOOTH = 2
+  }
+}
+
+export default sharing;
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