diff --git a/interfaces/kits/js/@ohos.fileAccess.d.ts b/interfaces/kits/js/@ohos.fileAccess.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";
+
+/**
+ * Provides fileAccess APIs
+ *
+ * @since 9
+ * @syscap SystemCapability.FileManagement.UserFileService
+ */
+
+declare namespace fileAccess {
+
+/**
+   * Open File
+   * 
+   * @since 9
+   * @systemapi
+   */
+function openFile(sourceFileUri: string, mode: string): Promise<number>;
+function openFile(sourceFileUri: string, mode: string, callback: AsyncCallback<number>): void;
+
+/**
+   * Create File
+   * 
+   * @since 9
+   * @systemapi
+   */
+function createFile(parentUri: string, displayName: string, newFileUri: string): Promise<number>;
+function createFile(parentUri: string, displayName: string, newFileUri: string, callback: AsyncCallback<number>): void;
+
+/**
+   * Mkdir
+   * 
+   * @since 9
+   * @systemapi
+   */
+function mkdir(parentUri: string, displayName: string, newDirUri: string): Promise<number>;
+function mkdir(parentUri: string, displayName: string, newDirUri: string, callback: AsyncCallback<number>): void;
+
+/**
+   * Delete
+   * 
+   * @since 9
+   * @systemapi
+   */
+function delete(selectFileUri: string): Promise<number>;
+function delete(selectFileUri: string, callback: AsyncCallback<number>): void;
+
+/**
+   * Move
+   * 
+   * @since 9
+   * @systemapi
+   */
+function move(sourceFileUri: string, targetParentUri: string, newFileUri: string): Promise<number>;
+function move(sourceFileUri: string, targetParentUri: string, newFileUri: string, callback: AsyncCallback<number>): void;
+
+/**
+   * Rename
+   * 
+   * @since 9
+   * @systemapi
+   */
+function rename(sourceFileUri: string, displayName: string, newFileUri: string): Promise<number>;
+function rename(sourceFileUri: string, displayName: string, newFileUri: string, callback: AsyncCallback<number>): void;
+
+export interface UnorderedMap {
+    key : string;
+    value : string;
+}
+
+/**
+   * Query
+   * 
+   * @since 9
+   * @systemapi
+   */
+function query(sourceFileUri: string): Promise<Array<UnorderedMap>>;
+function query(sourceFileUri: string, callback: AsyncCallback<Array<UnorderedMap>>): void;
+
+export interface FileInfo {
+    uri : string;
+    name : string;
+    mode : string;
+    size : number;
+    mtime : number;
+    mimitype : string;
+}
+
+/**
+   * Query Child File
+   * 
+   * @since 9
+   * @systemapi
+   */
+function queryChildFile(sourceFileUri: string): Promise<Array<FileInfo>>;
+function queryChildFile(sourceFileUri: string, callback: AsyncCallback<Array<FileInfo>>): void;
+
+export interface DeviceInfo {
+    deviceId : string;
+    uri : string;
+    title : string;
+    flags : number;
+}
+
+/**
+   * Get Roots
+   * 
+   * @since 9
+   * @systemapi
+   */
+function getRoots(): Promise<Array<DeviceInfo>>;
+function getRoots(callback: AsyncCallback<Array<DeviceInfo>>): void;
+}
+
+export default fileAccess;
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