diff --git a/api/@internal/component/ets/web.d.ts b/api/@internal/component/ets/web.d.ts
index ade286994b58bc024a16e978fd7393d343935965..3af66574d382a2e3bc46b63bc590be876d536fd4 100644
--- a/api/@internal/component/ets/web.d.ts
+++ b/api/@internal/component/ets/web.d.ts
@@ -6816,6 +6816,34 @@ declare enum WebResponseType {
   LONG_PRESS = 1
 }
 
+/**
+ * Enum type supplied to {@link bypassVsyncCondition} for setting the bypass vsync condition.
+ *
+ * @enum { number }
+ * @syscap SystemCapability.Web.Webview.Core
+ * @atomicservice
+ * @since 20
+ */
+declare enum WebBypassVsyncCondition {
+  /**
+   * Not bypass vsync.
+   *
+   * @syscap SystemCapability.Web.Webview.Core
+   * @atomicservice
+   * @since 20
+   */
+  NONE = 0,
+
+  /**
+   * bypass vsync.
+   *
+   * @syscap SystemCapability.Web.Webview.Core
+   * @atomicservice
+   * @since 20
+   */
+  SCROLLBY_FROM_ZERO_OFFSET = 1
+}
+
 /**
  * Defines the options of preview menu
  *
@@ -9432,6 +9460,19 @@ declare class WebAttribute extends CommonMethod<WebAttribute> {
    */
   layoutMode(mode: WebLayoutMode): WebAttribute;
 
+    /**
+   * Set the condition of bypassing vsync that makes the drawing schedule
+   * no longer dependent on Vsync scheduling and directly rendering and drawing
+   * 
+   * @param { WebBypassVsyncCondition } condition - The condition to skip vsync and trigger drawing directly
+   *    The default value is WebBypassVsyncCondition.NONE.
+   * @returns { WebAttribute }
+   * @syscap SystemCapability.Web.Webview.Core
+   * @atomicservice
+   * @since 20
+   */
+  bypassVsyncCondition(condition: WebBypassVsyncCondition): WebAttribute;
+
   /**
    * Called to setting the nested scroll options.
    *