diff --git a/api/@ohos.multimedia.avCastPicker.d.ets b/api/@ohos.multimedia.avCastPicker.d.ets
index 07eafbd26a53b3ebcefbd0b004e2669057607dbb..fb493e900c22e4530fe11348a1693a4033cbeab7 100644
--- a/api/@ohos.multimedia.avCastPicker.d.ets
+++ b/api/@ohos.multimedia.avCastPicker.d.ets
@@ -22,6 +22,14 @@ import { AVCastPickerState } from './@ohos.multimedia.avCastPickerParam';
 import { AVCastPickerStyle } from './@ohos.multimedia.avCastPickerParam';
 import { AVCastPickerColorMode } from './@ohos.multimedia.avCastPickerParam';
 
+/*** if arkts 1.2 */
+import { PropRef } from './arkui/stateManagement/decorator';
+import { Component } from './arkui/component/customComponent';
+import { Color} from './arkui/component/enums';
+import { CustomBuilder } from './arkui/component/builder';
+import { BuilderParam, Builder } from './arkui/component/builder';
+/*** endif */
+
 /**
  * A picker view to show availale streaming device list.
  * @syscap SystemCapability.Multimedia.AVSession.AVCast
@@ -31,10 +39,11 @@ import { AVCastPickerColorMode } from './@ohos.multimedia.avCastPickerParam';
  * A picker view to show availale streaming device list.
  * @syscap SystemCapability.Multimedia.AVSession.AVCast
  * @atomicservice
- * @since 12
+ * @since arkts{ '1.1':'12','1.2':'20' }
+ * @arkts 1.1&1.2
  */
 @Component
-declare struct AVCastPicker {
+export declare struct AVCastPicker {
   /**
    * Assigns the color of picker component at normal state .
    * @type { ? Color | number | string }
@@ -49,10 +58,23 @@ declare struct AVCastPicker {
    * @crossplatform
    * @atomicservice
    * @since 12
+   * @arkts 1.1
    */
   @Prop
   normalColor?: Color | number | string;
 
+  /**
+   * Assigns the color of picker component at normal state .
+   * @type { ? Color | number | string }
+   * @syscap SystemCapability.Multimedia.AVSession.AVCast
+   * @crossplatform
+   * @atomicservice
+   * @since 20
+   * @arkts 1.2
+   */
+  @PropRef
+  normalColor?: Color | number | string;
+
   /**
    * Assigns the color of picker component at active state.
    * @type { ? Color | number | string }
@@ -67,30 +89,67 @@ declare struct AVCastPicker {
    * @crossplatform
    * @atomicservice
    * @since 12
+   * @arkts 1.1
    */
   @Prop
   activeColor?: Color | number | string;
 
+  /**
+   * Assigns the color of picker component at active state.
+   * @type { ? Color | number | string }
+   * @syscap SystemCapability.Multimedia.AVSession.AVCast
+   * @crossplatform
+   * @atomicservice
+   * @since 20
+   * @arkts 1.2
+   */
+   @PropRef
+   activeColor?: Color | number | string;
+
   /**
    * Set the picker style.
    * @type { ? AVCastPickerStyle }
    * @syscap SystemCapability.Multimedia.AVSession.AVCast
    * @atomicservice
    * @since 12
+   * @arkts 1.1
    */
   @Prop
   pickerStyle?: AVCastPickerStyle;
 
+  /**
+   * Set the picker style.
+   * @type { ? AVCastPickerStyle }
+   * @syscap SystemCapability.Multimedia.AVSession.AVCast
+   * @atomicservice
+   * @since 20
+   * @arkts 1.2
+   */
+  @PropRef
+  pickerStyle?: AVCastPickerStyle;
+
   /**
    * Set the picker color mode.
    * @type { ? AVCastPickerColorMode }
    * @syscap SystemCapability.Multimedia.AVSession.AVCast
    * @atomicservice
    * @since 12
+   * @arkts 1.1
    */
   @Prop
   colorMode?: AVCastPickerColorMode;
 
+  /**
+   * Set the picker color mode.
+   * @type { ? AVCastPickerColorMode }
+   * @syscap SystemCapability.Multimedia.AVSession.AVCast
+   * @atomicservice
+   * @since 20
+   * @arkts 1.2
+   */
+  @PropRef
+  colorMode?: AVCastPickerColorMode;
+
   /**
    * Set the session type used by current picker component which can refer to AVSessionType in avSession.
    * If not set, default value is 'audio'.
@@ -98,10 +157,23 @@ declare struct AVCastPicker {
    * @syscap SystemCapability.Multimedia.AVSession.AVCast
    * @atomicservice
    * @since 12
+   * @arkts 1.1
    */
   @Prop
   sessionType?: string;
 
+  /**
+   * Set the session type used by current picker component which can refer to AVSessionType in avSession.
+   * If not set, default value is 'audio'.
+   * @type { ? string }
+   * @syscap SystemCapability.Multimedia.AVSession.AVCast
+   * @atomicservice
+   * @since 20
+   * @arkts 1.2
+   */
+  @PropRef
+  sessionType?: string;
+
   /**
    * Set the custom builder for the picker appearance.
    * If not set, system will show the default appearance for different device type.
@@ -109,10 +181,23 @@ declare struct AVCastPicker {
    * @syscap SystemCapability.Multimedia.AVSession.AVCast
    * @atomicservice
    * @since 12
+   * @arkts 1.1
    */
   @Prop
   customPicker?: CustomBuilder;
 
+  /**
+   * Set the custom builder for the picker appearance.
+   * If not set, system will show the default appearance for different device type.
+   * @type { ? CustomBuilder }
+   * @syscap SystemCapability.Multimedia.AVSession.AVCast
+   * @atomicservice
+   * @since 20
+   * @arkts 1.2
+   */
+  @PropRef
+  customPicker?: CustomBuilder;
+
   /**
    * Picker state change callback.
    * @type { ?function }
@@ -126,8 +211,18 @@ declare struct AVCastPicker {
    * @syscap SystemCapability.Multimedia.AVSession.AVCast
    * @crossplatform
    * @atomicservice
-   * @since 12
+   * @since arkts{ '1.1':'12','1.2':'20' }
+   * @arkts 1.1&1.2
    */
   onStateChange?: (state: AVCastPickerState) => void;
-}
-export default AVCastPicker;
\ No newline at end of file
+
+  /**
+   * The method to build component.
+   * @syscap SystemCapability.Multimedia.AVSession.AVCast
+   * @atomicservice
+   * @since 20
+   * @arkts 1.2
+   */
+  @Builder
+  build(): void;
+}
\ No newline at end of file