diff --git a/api/@ohos.security.identifySensitiveContent.d.ts b/api/@ohos.security.identifySensitiveContent.d.ts
new file mode 100644
index 0000000000000000000000000000000000000000..49146f355a576861cc0719707fc38ba77e8fd91e
--- /dev/null
+++ b/api/@ohos.security.identifySensitiveContent.d.ts
@@ -0,0 +1,127 @@
+/*
+ * Copyright (c) 2025 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.
+ */
+
+/**
+ * @file Identify sensitive file
+ * @kit DataProtectionKit
+ */
+
+/**
+ * identifySensitiveContent
+ * @namespace identifySensitiveContent
+ * @syscap SystemCapability.Security.DataLossPrevention
+ * @since 21
+ */
+ declare namespace identifySensitiveContent {
+
+  /**
+   * Identify Policy
+   * @typedef Policy
+   * @syscap SystemCapability.Security.DataLossPrevention
+   * @since 21
+   */
+  export interface Policy {
+
+    /**
+     * Sensitive Label
+     * Label Length:[1, 30]
+     * @type { string }
+     * @syscap SystemCapability.Security.DataLossPrevention
+     * @since 21
+     */
+    sensitiveLabel: string;
+
+    /**
+     * Collection of keyword
+     * Keyword Length:[1, 30]
+     * Array Length:[0,50]
+     * @type { Array<string> }
+     * @syscap SystemCapability.Security.DataLossPrevention
+     * @since 21
+     */
+    keywords: Array<string>;
+
+    /**
+     * Regular expression
+     * Regex Length:[0, 512]
+     * @type { string }
+     * @syscap SystemCapability.Security.DataLossPrevention
+     * @since 21
+     */
+    regex: string;
+  }
+
+  /**
+   * Match result
+   * @typedef MatchResult
+   * @syscap SystemCapability.Security.DataLossPrevention
+   * @since 21
+   */
+  export interface MatchResult {
+
+    /**
+     * Identify Label
+     * @type { string }
+     * @readonly
+     * @syscap SystemCapability.Security.DataLossPrevention
+     * @since 21
+     */
+    readonly sensitiveLabel: string;
+
+    /**
+     * Match content
+     * @type { string }
+     * @readonly
+     * @syscap SystemCapability.Security.DataLossPrevention
+     * @since 21
+     */
+    readonly matchContent: string;
+
+    /**
+     * Total number of identified content
+     * @type { number }
+     * @readonly
+     * @syscap SystemCapability.Security.DataLossPrevention
+     * @since 21
+     */
+    readonly matchNumber: number;
+  }
+
+  /**
+   * Identify sensitive content from file based on policy.
+   * @permission ohos.permission.ENTERPRISE_DATA_IDENTIFY_FILE
+   * @param { string } filePath - To be idetified file path
+   * @param { Array<Policy> } identifyPolicies - Identify Policy
+   * @returns { Promise<Array<MatchResult>> } Identify result of Sensitive content
+   * @throws { BusinessError } 201 - permission denied.
+   * @throws { BusinessError } 801 - Capability not supported.
+   * @throws { BusinessError } 19110001 - Parameter error. Possible causes:
+   *     1. Incorrect policy format.
+   *     2. Invalid parameter range.
+   * @throws { BusinessError } 19110002 - Sensitive file content identification timed out.
+   * @throws { BusinessError } 19110003 - The file is not supported. Possible causes:
+   *     1. The file path does not exist.
+   *     2. The file type is not supported.
+   *     3. The file permission is not supported.
+   * @throws { BusinessError } 19110004 - A system error has occurred.
+   * @syscap SystemCapability.Security.DataLossPrevention
+   * @since 21
+   */
+  function scanFile(filePath: string, identifyPolicies: Array<Policy>)
+    : Promise<Array<MatchResult>>;
+ }
+ 
+ export default identifySensitiveContent;
+
diff --git a/kits/@kit.DataProtectionKit.d.ts b/kits/@kit.DataProtectionKit.d.ts
index e8024689314fbeb0d2076d99f6577dfbaadade87..0d1c91bad0ff746b93b8cca9d29aba18892ea0dd 100644
--- a/kits/@kit.DataProtectionKit.d.ts
+++ b/kits/@kit.DataProtectionKit.d.ts
@@ -19,5 +19,6 @@
  */
 
 import dlpPermission from '@ohos.dlpPermission';
+import identifySensitiveContent from '@ohos.security.identifySensitiveContent';
 
-export { dlpPermission };
+export { dlpPermission, identifySensitiveContent };