diff --git a/api/@ohos.resourceManager.d.ts b/api/@ohos.resourceManager.d.ts
index 1e46a3749f02b48a2f33a0423ad65a76a693f4b8..258978388031bccc282f99ee03478c28fb0acb3e 100644
--- a/api/@ohos.resourceManager.d.ts
+++ b/api/@ohos.resourceManager.d.ts
@@ -14,6 +14,7 @@
  */
 
 import Context from './application/Context';
+import { RawFileDescriptor } from './global/rawFileDescriptor';
 
 /**
  * Provides resource related APIs.
@@ -425,6 +426,24 @@ export interface ResourceManager {
      */
     getRawFile(path: string): Promise<Uint8Array>;
 
+    /**
+     * Obtains the raw file resource descriptor corresponding to the specified resource path in callback mode.
+     *
+     * @param path Indicates the resource relative path.
+     * @param callback Indicates the asynchronous callback used to return the raw file resource descriptor.
+     * @since 8
+     */
+    getRawFileDescriptor(path: string, callback: AsyncCallback<RawFileDescriptor>);
+
+     /**
+      * Obtains the raw file resource descriptor corresponding to the specified resource path in Promise mode.
+      *
+      * @param path Indicates the resource relative path.
+      * @return Returns the raw file resource descriptor corresponding to the specified resource path.
+      * @since 8
+      */
+    getRawFileDescriptor(path: string): Promise<RawFileDescriptor>;
+
     /**
      * Obtains release resourceManager.
      *
diff --git a/api/global/rawFileDescriptor.d.ts b/api/global/rawFileDescriptor.d.ts
new file mode 100644
index 0000000000000000000000000000000000000000..a38315ff6ebe9bb905acc8be5c8b67b102700538
--- /dev/null
+++ b/api/global/rawFileDescriptor.d.ts
@@ -0,0 +1,45 @@
+/*
+ * 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.
+ */
+
+/**
+ * Contains rawFile descriptor information.
+ * @name Contains rawFile descriptor information
+ * @since 8
+ * @syscap SystemCapability.Global.ResourceManager
+ *
+ * @permission N/A
+ */
+ export interface RawFileDescriptor {
+  /**
+   * rawfile descriptor
+   *
+   * @since 8
+   */
+  fd: number;
+
+  /**
+   * the offset from where the raw file starts in the HAP
+   *
+   * @since 8
+   */
+  offset: number;
+
+  /**
+   * the length of the raw file in the HAP
+   *
+   * @since 8
+   */
+  length: number;
+}