diff --git a/api/@internal/component/ets/common.d.ts b/api/@internal/component/ets/common.d.ts
index e05c939d918099f94d86f154df0a149ef38cf9db..058cc85a1ad946b76eb0c6895e4099afc9b8456f 100644
--- a/api/@internal/component/ets/common.d.ts
+++ b/api/@internal/component/ets/common.d.ts
@@ -666,6 +666,30 @@ declare enum SourceType {
   TouchScreen,
 }
 
+/**
+ * enum Blur style
+ * @since 9
+ */
+ declare enum BlurStyle {
+  /**
+   * Defines the fuzzy scale.
+   * @since 9
+   */
+  Thin,
+
+  /**
+   * Defines the fuzzy scale.
+   * @since 9
+   */
+  Regular,
+
+  /**
+   * Defines the fuzzy scale.
+   * @since 9
+   */
+  Thick,
+}
+
 /**
  * Defines the base event.
  * @since 8
@@ -1171,6 +1195,13 @@ declare class CommonMethod<T> {
    */
   backgroundImagePosition(value: Position | Alignment): T;
 
+  /**
+   * Background blur style.
+   * blurStyle:Blur style type.
+   * @since 9
+   */
+   backgroundBlurStyle(value: BlurStyle): T;
+  
   /**
    * Opacity
    * @since 7