diff --git a/api/@ohos.deviceinfo.d.ts b/api/@ohos.deviceinfo.d.ts
index 7a78a571ba8ac425a7064b56bca5782fc84b0fae..38199d28f47a711da06a6231a0c6370ffaed8074 100644
--- a/api/@ohos.deviceinfo.d.ts
+++ b/api/@ohos.deviceinfo.d.ts
@@ -233,6 +233,13 @@ declare namespace deviceInfo {
      * @since 6
      */
     const buildRootHash: string;
+
+    /**
+     * Obtains the device udid.
+     *
+     * @since 7
+     */
+    const udid: string;
 }
 
 export default deviceInfo;