diff --git a/web/webview/interfaces/native/arkweb_error_code.h b/web/webview/interfaces/native/arkweb_error_code.h
index 4caab8f5df045eb1f12b84c9ab4a79b45c722548..4cd84eaecb42ff5818829a293a31e8115932180f 100644
--- a/web/webview/interfaces/native/arkweb_error_code.h
+++ b/web/webview/interfaces/native/arkweb_error_code.h
@@ -71,5 +71,55 @@ ARKWEB_LIBRARY_OPEN_FAILURE = 17100105,
 ARKWEB_LIBRARY_SYMBOL_NOT_FOUND = 17100106,
 } ArkWeb_ErrorCode;
 
+typedef enum ArkWeb_BlanklessErrorCode {
+/*
+ * @brief Success.
+ *
+ * @syscap SystemCapability.Web.Webview.Core
+ * @since 20
+ */
+ARKWEB_BLANKLESS_SUCCESS = 0,
+
+/*
+ * @brief Unknown error.
+ *
+ * @syscap SystemCapability.Web.Webview.Core
+ * @since 20
+ */
+ARKWEB_BLANKLESS_ERR_UNKNOWN = -1,
+
+/*
+ * @brief Invalid args.
+ *
+ * @syscap SystemCapability.Web.Webview.Core
+ * @since 20
+ */
+ARKWEB_BLANKLESS_ERR_INVALID_ARGS = -2,
+
+/*
+ * @brief Init error. The web controller is not binded with the component.
+ *
+ * @syscap SystemCapability.Web.Webview.Core
+ * @since 20
+ */
+ARKWEB_BLANKLESS_ERR_CONTROLLER_NOT_INITED = -3,
+
+/*
+ * @brief The key of blankless was not matched.
+ *
+ * @syscap SystemCapability.Web.Webview.Core
+ * @since 20
+ */
+ARKWEB_BLANKLESS_KEY_NOT_MATCH = -4,
+
+/*
+ * @brief There are significant changes for the loading page.
+ *
+ * @syscap SystemCapability.Web.Webview.Core
+ * @since 20
+ */
+ARKWEB_BLANKLESS_SIGNIFICANT_CHANGE = -5
+} ArkWeb_BlanklessErrorCode;
+
 #endif // ARKWEB_ERROR_CODE_H
 /** @} */
diff --git a/web/webview/interfaces/native/native_interface_arkweb.h b/web/webview/interfaces/native/native_interface_arkweb.h
index 7d40e22df06a3d600a5ce666932afef69adc2b32..79e040435dc29e49d36c91e25483470f2bd041eb 100644
--- a/web/webview/interfaces/native/native_interface_arkweb.h
+++ b/web/webview/interfaces/native/native_interface_arkweb.h
@@ -69,6 +69,20 @@ typedef void (*NativeArkWeb_OnValidCallback)(const char*);
 */
 typedef void (*NativeArkWeb_OnDestroyCallback)(const char*);
 
+/**
+ * @brief Defines the blankless info.
+ *
+ * @since 20
+ */
+typedef struct {
+    /** The errCode of the blankless. */
+    ArkWeb_BlanklessErrorCode errCode;
+    /** The estimated similarity of the history snapshots. */
+    double similarity;
+    /** The loadingTime of the history loading. */
+    int32_t loadingTime;
+} ArkWeb_BlanklessInfo;
+
 /**
  * @brief Loads a piece of code and execute JS code in the context of the currently displayed page.
  *
@@ -185,6 +199,54 @@ ArkWeb_ErrorCode OH_NativeArkWeb_LoadData(const char* webTag,
                                           const char* baseUrl,
                                           const char* historyUrl);
 
+/**
+ * @brief get the white screen optimization info when the current page is loaded.
+ *
+ * @param webTag The name of the web component.
+ * @param key A key string of the loading page, should not be NULL.
+ * @return Blankless info.
+ *
+ * @syscap SystemCapability.Web.Webview.Core
+ * @since 20
+ */
+ArkWeb_BlanklessInfo OH_NativeArkWeb_GetBlanklessInfoWithKey(const char* webTag, const char* key);
+
+/**
+ * @brief set the white screen optimization solution when the current page is loaded.
+ *
+ * @param webTag The name of the web component.
+ * @param key A key string of the loading page, should not be NULL.
+ * @return Blankless result code.
+ *
+ * @syscap SystemCapability.Web.Webview.Core
+ * @since 20
+ */
+ArkWeb_BlanklessErrorCode OH_NativeArkWeb_SetBlanklessLoadingWithKey(const char* webTag,
+                                                                     const char* key,
+                                                                     bool isStarted);
+
+/**
+ * @brief The apps can use this interface to clear the page cache. The "Clear Page"
+ * here is within the page range set in the API getBlanklessInfoWithKey.
+ *
+ * @param key A array of key string.
+ *
+ * @syscap SystemCapability.Web.Webview.Core
+ * @since 20
+ */
+void OH_NativeArkWeb_ClearBlanklessLoadingCache(const char* key[]);
+
+/**
+ * @brief Set the capacity of the blankless cache.
+ *
+ * @param capacity The blankless capacity the apps want to set.
+ * @return The real blankless capacity, 0-100.
+ *
+ * @syscap SystemCapability.Web.Webview.Core
+ * @since 20
+ */
+int32_t OH_NativeArkWeb_SetBlanklessLoadingCacheCapacity(int32_t capacity);
+
 #ifdef __cplusplus
 };
 #endif