diff --git a/api/@ohos.screen.d.ts b/api/@ohos.screen.d.ts
index b553fa8303e82c105b7bb2b9b4b0768d2cafc2c2..6bcd35647afe21258332fed57a103e79cce052e7 100644
--- a/api/@ohos.screen.d.ts
+++ b/api/@ohos.screen.d.ts
@@ -685,6 +685,17 @@ declare namespace screen {
      */
     readonly id: number;
 
+    /**
+     * Physical screen id
+     *
+     * @type { number }
+     * @readonly
+     * @syscap SystemCapability.WindowManager.WindowManager.Core
+     * @systemapi Hide this for inner system use.
+     * @since 19
+     */
+    readonly physicalId: number;
+
     /**
      * Group id
      *
@@ -750,7 +761,7 @@ declare namespace screen {
      * @since 15
      */
     readonly serialNumber?: string;
-    
+
     /**
      * Set the orientation of the screen
      *