diff --git a/api/@internal/component/ets/action_sheet.d.ts b/api/@internal/component/ets/action_sheet.d.ts
index 33cac2e68..1b5710378 100644
--- a/api/@internal/component/ets/action_sheet.d.ts
+++ b/api/@internal/component/ets/action_sheet.d.ts
@@ -306,6 +306,16 @@ interface ActionSheetOptions
    * @since 10
    */
   offset?: { dx: number | string | Resource; dy: number | string | Resource };
+
+  /**
+   * Mask Region of dialog. The size cannot exceed the main window.
+   *
+   * @type { ?Rectangle }
+   * @syscap SystemCapability.ArkUI.ArkUI.Full
+   * @crossplatform
+   * @since 10
+   */
+  maskRect?: Rectangle;
 }
 
 /**
diff --git a/api/@internal/component/ets/alert_dialog.d.ts b/api/@internal/component/ets/alert_dialog.d.ts
index 62ba0ff04..12755e1f7 100644
--- a/api/@internal/component/ets/alert_dialog.d.ts
+++ b/api/@internal/component/ets/alert_dialog.d.ts
@@ -323,6 +323,16 @@ declare interface AlertDialogParam {
    * @since 10
    */
   gridCount?: number;
+
+  /**
+   * Mask Region of dialog. The size cannot exceed the main window.
+   *
+   * @type { ?Rectangle }
+   * @syscap SystemCapability.ArkUI.ArkUI.Full
+   * @crossplatform
+   * @since 10
+   */
+  maskRect?: Rectangle;
 }
 
 /**
diff --git a/api/@internal/component/ets/custom_dialog_controller.d.ts b/api/@internal/component/ets/custom_dialog_controller.d.ts
index 0de0cfdf6..4db0e1ba9 100644
--- a/api/@internal/component/ets/custom_dialog_controller.d.ts
+++ b/api/@internal/component/ets/custom_dialog_controller.d.ts
@@ -158,6 +158,16 @@ declare interface CustomDialogControllerOptions {
    */
   maskColor?: ResourceColor;
 
+  /**
+   * Mask Region of dialog. The size cannot exceed the main window.
+   *
+   * @type { ?Rectangle }
+   * @syscap SystemCapability.ArkUI.ArkUI.Full
+   * @crossplatform
+   * @since 10
+   */
+  maskRect?: Rectangle;
+
   /**
    * Animation parameters of dialog opening.
    *
diff --git a/api/@internal/component/ets/date_picker.d.ts b/api/@internal/component/ets/date_picker.d.ts
index f983a21bb..cf7670528 100644
--- a/api/@internal/component/ets/date_picker.d.ts
+++ b/api/@internal/component/ets/date_picker.d.ts
@@ -366,6 +366,36 @@ declare interface DatePickerDialogOptions extends DatePickerOptions {
    */
   selectedTextStyle?: PickerTextStyle;
 
+  /**
+   * Mask Region of dialog. The size cannot exceed the main window.
+   *
+   * @type { ?Rectangle }
+   * @syscap SystemCapability.ArkUI.ArkUI.Full
+   * @crossplatform
+   * @since 10
+   */
+  maskRect?: Rectangle;
+
+  /**
+   * Defines the dialog alignment of the screen.
+   *
+   * @type { ?DialogAlignment }
+   * @syscap SystemCapability.ArkUI.ArkUI.Full
+   * @crossplatform
+   * @since 10
+   */
+  alignment?: DialogAlignment;
+
+  /**
+   * Defines the dialog offset.
+   *
+   * @type { ?Offset }
+   * @syscap SystemCapability.ArkUI.ArkUI.Full
+   * @crossplatform
+   * @since 10
+   */
+  offset?: Offset;
+
   /**
    * Called when the OK button in the dialog is clicked.
    *
diff --git a/api/@internal/component/ets/text_picker.d.ts b/api/@internal/component/ets/text_picker.d.ts
index 24993b509..6b514003a 100644
--- a/api/@internal/component/ets/text_picker.d.ts
+++ b/api/@internal/component/ets/text_picker.d.ts
@@ -482,6 +482,36 @@ declare interface TextPickerDialogOptions extends TextPickerOptions {
    * @since 10
    */
   onChange?: (value: TextPickerResult) => void;
+
+  /**
+   * Mask Region of dialog. The size cannot exceed the main window.
+   *
+   * @type { ?Rectangle }
+   * @syscap SystemCapability.ArkUI.ArkUI.Full
+   * @crossplatform
+   * @since 10
+   */
+  maskRect?: Rectangle;
+
+  /**
+   * Defines the dialog alignment of the screen.
+   *
+   * @type { ?DialogAlignment }
+   * @syscap SystemCapability.ArkUI.ArkUI.Full
+   * @crossplatform
+   * @since 10
+   */
+  alignment?: DialogAlignment;
+
+  /**
+   * Defines the dialog offset.
+   *
+   * @type { ?Offset }
+   * @syscap SystemCapability.ArkUI.ArkUI.Full
+   * @crossplatform
+   * @since 10
+   */
+  offset?: Offset;
 }
 
 /**
diff --git a/api/@internal/component/ets/time_picker.d.ts b/api/@internal/component/ets/time_picker.d.ts
index 49b2ec8e5..b56ab3f16 100644
--- a/api/@internal/component/ets/time_picker.d.ts
+++ b/api/@internal/component/ets/time_picker.d.ts
@@ -285,6 +285,36 @@ declare interface TimePickerDialogOptions extends TimePickerOptions {
    */
   selectedTextStyle?: PickerTextStyle;
 
+  /**
+   * Mask Region of dialog. The size cannot exceed the main window.
+   *
+   * @type { ?Rectangle }
+   * @syscap SystemCapability.ArkUI.ArkUI.Full
+   * @crossplatform
+   * @since 10
+   */
+  maskRect?: Rectangle;
+
+  /**
+   * Defines the dialog alignment of the screen.
+   *
+   * @type { ?DialogAlignment }
+   * @syscap SystemCapability.ArkUI.ArkUI.Full
+   * @crossplatform
+   * @since 10
+   */
+  alignment?: DialogAlignment;
+
+  /**
+   * Defines the dialog offset.
+   *
+   * @type { ?Offset }
+   * @syscap SystemCapability.ArkUI.ArkUI.Full
+   * @crossplatform
+   * @since 10
+   */
+  offset?: Offset;
+
   /**
    * Called when the OK button in the dialog is clicked.
    *
diff --git a/api/@ohos.promptAction.d.ts b/api/@ohos.promptAction.d.ts
index d133c0074..48b419e69 100644
--- a/api/@ohos.promptAction.d.ts
+++ b/api/@ohos.promptAction.d.ts
@@ -243,6 +243,36 @@ declare namespace promptAction {
      * @since 10
      */
     buttons?: [Button, Button?, Button?];
+
+    /**
+     * Mask Region of dialog. The size cannot exceed the main window.
+     *
+     * @type { ?Rectangle }
+     * @syscap SystemCapability.ArkUI.ArkUI.Full
+     * @crossplatform
+     * @since 10
+     */
+    maskRect?: Rectangle;
+
+    /**
+     * Defines the dialog alignment of the screen.
+     *
+     * @type { ?DialogAlignment }
+     * @syscap SystemCapability.ArkUI.ArkUI.Full
+     * @crossplatform
+     * @since 10
+     */
+    alignment?: DialogAlignment;
+
+    /**
+     * Defines the dialog offset.
+     *
+     * @type { ?Offset }
+     * @syscap SystemCapability.ArkUI.ArkUI.Full
+     * @crossplatform
+     * @since 10
+     */
+    offset?: Offset;
   }
 
   /**