diff --git a/api/@ohos.file.picker.d.ts b/api/@ohos.file.picker.d.ts
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+/*
+ * Copyright (c) 2023 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";
+
+/**
+ * This module provides the capabilities to use different pickers.
+ *
+ * @since 9
+ * @syscap SystemCapability.FileManagement.UserFileService
+ */
+declare namespace picker {
+    /**
+     * PhotoViewMIMETypes represents the type of media resource that photo picker selects.
+     * @since 9
+     * @syscap SystemCapability.FileManagement.UserFileService
+     */
+    export enum PhotoViewMIMETypes {
+        IMAGE_TYPE = "image/*",
+        VIDEO_TYPE = "video/*",
+        IMAGE_VIDEO_TYPE = "*/*"
+    }
+
+    /**
+     * PhotoSelectOptions Object
+     * @since 9
+     * @syscap SystemCapability.FileManagement.UserFileService
+     */
+    interface PhotoSelectOptions {
+        /**
+         * The Type of the file in the picker window.
+         * @type {PhotoViewMIMETypes}
+         * @since 9
+         */
+        MIMEType?: PhotoViewMIMETypes;
+        
+        /**
+         * Maximum number of images for a single selection.
+         * @type {number}
+         * @since 9
+         */
+        maxSelectNumber?: number;
+    }
+
+    /**
+     * PhotoSelectResult Object
+     * @since 9
+     * @syscap SystemCapability.FileManagement.UserFileService
+     */
+    interface PhotoSelectResult {
+        /**
+         * The uris for the selected files.
+         * @type {Array<string>}
+         * @since 9
+         */
+        photoUris: Array<string>;
+        
+        /**
+         * Original option.
+         * @type {boolean}
+         * @since 9
+         */
+        isOriginalPhoto: boolean;
+    }
+
+    /**
+     * PhotoSaveOptions Object
+     * @since 9
+     * @syscap SystemCapability.FileManagement.UserFileService
+     */
+     interface PhotoSaveOptions {
+        /**
+         * The names of the files to be saved.
+         * @type {Array<string>}
+         * @since 9
+         */
+        newFileNames?: Array<string>;
+    }
+
+    /**
+     * PhotoViewPicker Object
+     * @since 9
+     * @syscap SystemCapability.FileManagement.UserFileService
+     */
+    interface PhotoViewPicker {
+        /**
+         * Pull up the photo picker based on the selection mode.
+         *
+         * @since 9
+         * @syscap SystemCapability.FileManagement.UserFileService
+         * @param PhotoSelectOptions represents the options provided in select mode.
+         * @returns {(void | Promise<PhotoSelectResult>)} Returns the uris for the selected files.
+         */
+        select(option?: PhotoSelectOptions) : Promise<PhotoSelectResult>;
+        select(option: PhotoSelectOptions, callback: AsyncCallback<PhotoSelectResult>) : void;
+        select(callback: AsyncCallback<PhotoSelectResult>) : void;
+
+        /**
+         * Pull up the photo picker based on the save mode.
+         *
+         * @since 9
+         * @syscap SystemCapability.FileManagement.UserFileService
+         * @param PhotoSaveOptions represents the options provided in save mode.
+         * @returns {(void | Promise<Array<string>>)} Returns the uris for the saved files.
+         */
+        save(option?: PhotoSaveOptions) : Promise<Array<string>>;
+        save(option: PhotoSaveOptions, callback: AsyncCallback<Array<string>>) : void;
+        save(callback: AsyncCallback<Array<string>>) : void;
+    }
+
+    /**
+     * DocumentSelectOptions Object. Currently not supported.
+     * @since 9
+     * @syscap SystemCapability.FileManagement.UserFileService
+     */
+    interface DocumentSelectOptions {
+    }
+
+    /**
+     * DocumentSaveOptions Object
+     * @since 9
+     * @syscap SystemCapability.FileManagement.UserFileService
+     */
+    interface DocumentSaveOptions {
+        /**
+         * The names of the files to be saved.
+         * Currently, only single file is supported.
+         * @type {Array<string>}
+         * @since 9
+         */
+        newFileNames?: Array<string>;
+    }
+
+    /**
+     * DocumentViewPicker Object
+     * @since 9
+     * @syscap SystemCapability.FileManagement.UserFileService
+     */    
+    interface DocumentViewPicker {
+        /**
+         * Pull up the document picker based on the selection mode.
+         * Currently, only single file is supported.
+         *
+         * @since 9
+         * @syscap SystemCapability.FileManagement.UserFileService         
+         * @param DocumentSelectOptions represents the options provided in select mode.
+         * @returns {(void | Promise<Array<string>>)} Returns the uris for the selected files.
+         */
+        select(option?: DocumentSelectOptions) : Promise<Array<string>>;
+        select(option: DocumentSelectOptions, callback: AsyncCallback<Array<string>>) : void;
+        select(callback: AsyncCallback<Array<string>>) : void;
+
+        /**
+         * Pull up the document picker based on the save mode.
+         * Currently, only single file is supported.
+         *
+         * @since 9
+         * @syscap SystemCapability.FileManagement.UserFileService         
+         * @param DocumentSaveOptions represents the options provided in save mode.
+         * @returns {(void | Promise<Array<string>>)} Returns the uris for the saved files.
+         */
+        save(option?: DocumentSaveOptions) : Promise<Array<string>>;
+        save(option: DocumentSaveOptions, callback: AsyncCallback<Array<string>>) : void;
+        save(callback: AsyncCallback<Array<string>>) : void;
+    }
+
+    /**
+     * AudioSelectOptions Object. Currently not supported.
+     * @since 9
+     * @syscap SystemCapability.FileManagement.UserFileService
+     */
+    interface AudioSelectOptions {
+    }
+
+    /**
+     * AudioSaveOptions Object
+     * @since 9
+     * @syscap SystemCapability.FileManagement.UserFileService
+     */
+    interface AudioSaveOptions {
+        /**
+         * The names of the files to be saved.
+         * Currently, only single file is supported.
+         * @type {Array<string>}
+         * @since 9
+         */
+        newFileNames?: Array<string>;
+    }
+
+    /**
+     * AudioViewPicker Object
+     * @since 9
+     * @syscap SystemCapability.FileManagement.UserFileService
+     */ 
+    interface AudioViewPicker {
+        /**
+         * Pull up the audio picker based on the selection mode.
+         * Currently, only single file is supported.
+         *
+         * @since 9
+         * @syscap SystemCapability.FileManagement.UserFileService
+         * @param AudioSelectOptions represents the options provided in select mode.
+         * @returns {(void | Promise<Array<string>>)} Returns the uris for the selected files.
+         */
+        select(option?: AudioSelectOptions) : Promise<Array<string>>;
+        select(option: AudioSelectOptions, callback: AsyncCallback<Array<string>>) : void;
+        select(callback: AsyncCallback<Array<string>>) : void;
+
+        /**
+         * Pull up the audio picker based on the save mode.
+         * Currently, only single file is supported.
+         *
+         * @since 9
+         * @syscap SystemCapability.FileManagement.UserFileService         
+         * @param AudioSaveOptions represents the options provided in save mode.
+         * @returns {(void | Promise<Array<string>>)} Returns the uris for the saved files.
+         */
+        save(option?: AudioSaveOptions) : Promise<Array<string>>;
+        save(option: AudioSaveOptions, callback: AsyncCallback<Array<string>>) : void;
+        save(callback: AsyncCallback<Array<string>>) : void;
+    }
+}
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