diff --git a/api/@ohos.distributedDeviceManager.d.ts b/api/@ohos.distributedDeviceManager.d.ts
index 54dc1a290a2019e245ac442eba5154ada8260741..bdba0e0277c6774ab41abb72b88a12dfc774d4da 100644
--- a/api/@ohos.distributedDeviceManager.d.ts
+++ b/api/@ohos.distributedDeviceManager.d.ts
@@ -71,14 +71,6 @@ declare namespace distributedDeviceManager {
      * @since 10
      */
     networkId?: string;
-
-    /**
-     * Device extra data.
-     * @type { ?string }
-     * @syscap SystemCapability.DistributedHardware.DeviceManager
-     * @since 18
-     */
-    extraData?: string;
   }
 
   /**