diff --git a/api/@ohos.uitest.d.ts b/api/@ohos.uitest.d.ts
index 1e88f91157c86dc99a2bf1900c955b8ad158a04f..c29c5450692d3eac5a082dc8da98b4e5a0b5cd49 100644
--- a/api/@ohos.uitest.d.ts
+++ b/api/@ohos.uitest.d.ts
@@ -75,6 +75,18 @@
     SECONDARY,
     FLOATING
  }
+
+/**
+ * Describes the rotation of the device display
+ * @syscap SystemCapability.Test.UiTest
+ * @since 9
+ */
+enum DisplayRotation {
+    ROTATION_0,
+    ROTATION_90,
+    ROTATION_180,
+    ROTATION_270
+}
  
 /**
  * Represents the point on the device screen.
@@ -675,6 +687,101 @@ class UiComponent{
    * @test
    */
   screenCap(savePath:string):Promise<bool>;
+
+  /**
+   * Set the rotation of the device display.
+   * @syscap SystemCapability.Test.UiTest
+   * @param rotation the target rotation to set.
+   * @since 9
+   * @test
+   */
+  setDisplayRotation(rotation: DisplayRotation):Promise<void>;
+
+  /**
+   * Get the rotation of the device display.
+   * @syscap SystemCapability.Test.UiTest
+   * @returns the current display rotation.
+   * @since 9
+   * @test
+   */
+   getDisplayRotation():Promise<DisplayRotation>;
+
+  /**
+   * Enable/disable the rotation of device display.
+   * @syscap SystemCapability.Test.UiTest
+   * @param enabled enable the rotation or not.
+   * @since 9
+   * @test
+   */
+   setDisplayRotationEnabled(enabled:bool):Promise<void>;
+
+  /**
+   * Get the size of the device display.
+   * @syscap SystemCapability.Test.UiTest
+   * @returns the size of the device display.
+   * @since 9
+   * @test
+   */
+   getDisplaySize():Promise<Point>;
+
+  /**
+   * Get the density of the device display.
+   * @syscap SystemCapability.Test.UiTest
+   * @returns the density of the device display.
+   * @since 9
+   * @test
+   */
+   getDisplayDensity():Promise<Point>;
+
+  /**
+   * Wake up the device display.
+   * @syscap SystemCapability.Test.UiTest
+   * @since 9
+   * @test
+   */
+   wakeUpDisplay():Promise<void>;
+
+  /**
+   * Press the home key.
+   * @syscap SystemCapability.Test.UiTest
+   * @since 9
+   * @test
+   */
+   pressHome():Promise<void>;
+
+  /**
+   * Wait for the UI become idle.
+   * @syscap SystemCapability.Test.UiTest
+   * @param idleTime the threshold of UI idle time, in millisecond.
+   * @param timeout the maximum time to wait for idle, in millisecond.
+   * @returns true if wait for idle succeed in the timeout, false otherwise.
+   * @since 9
+   * @test
+   */
+   waitForIdle(idleTime: number, timeout: number):Promise<bool>;
+
+  /**
+   * Inject fling on the device display.
+   * @syscap SystemCapability.Test.UiTest
+   * @param from the threshold of UI idle time, in millisecond.
+   * @param to the maximum time to wait for idle, in millisecond.
+   * @param stepLen the length of each step, in pixels.
+   * @param speed the speed of fling (pixels per second),default is 600,the value ranges from 0 to 3000,set it 3000 if greater than 3000.
+   * @returns true if wait for idle succeed in the timeout, false otherwise.
+   * @since 9
+   * @test
+   */
+   fling(from: Point, to: Point, stepLen: number, speed: number):Promise<void>;
+
+  /**
+   * Inject multi-pointer action on the device display.
+   * @syscap SystemCapability.Test.UiTest
+   * @param pointers the two-dimensional array of pointers to inject.
+   * @param speed the speed of swipe (pixels per second),default is 600,the value ranges from 0 to 3000,set it 3000 if greater than 3000.
+   * @since 9
+   * @test
+   */
+   injectMultiPointerAction(pointers: PointerMatrix, speed?: number):Promise<bool>;
 }
 
 /**
@@ -812,6 +919,37 @@ class UiComponent{
    close():Promise<bool>; 
  }
 
+/**
+ * Represents a two-dimensional array of pointers on the device display, it's used to build a
+ * multi-finger trace which can be injected with UiDriver.
+ *
+ * @since 9
+ * @test
+ * @syscap SystemCapability.Test.UiTest
+ */
+class PointerMatrix {
+   /**
+   * Create an {@link PointerMatrix} object.
+   * @syscap SystemCapability.Test.UiTest
+   * @param fingers the number of fingers.
+   * @param steps the number of steps of each finger trace.
+   * @returns the {@link PointerMatrix} object.
+   * @since 9
+   * @test
+   */
+    static create(fingers: number, steps: number):PointerMatrix;
+
+    /**
+    * Set the point value of an element in the PointerMatrix.
+    * @syscap SystemCapability.Test.UiTest
+    * @param finger the index of target finger to set.
+    * @param step the index of target step to set.
+    * @since 9
+    * @test
+    */
+    setPoint(finger: number, step: number, point: Point):void;
+}
+
 /**
  * The static builder for building {@link By}object conveniently,usage example:BY.text('txt').enabled(true).
  * @syscap SystemCapability.Test.UiTest