diff --git a/lib/core/src/ajax/ajax.ts b/lib/core/src/ajax/ajax.ts
index f04a2b9153..1c4a2d1347 100644
--- a/lib/core/src/ajax/ajax.ts
+++ b/lib/core/src/ajax/ajax.ts
@@ -1,6 +1,6 @@
 import {$} from '@zui/core';
 
-import type {AjaxCallbackMap, AjaxCompleteCallback, AjaxErrorCallback, AjaxFormItemValue, AjaxSetting, AjaxSuccessCallback} from './types';
+import type {AjaxBeforeSendCallback, AjaxCallbackMap, AjaxCompleteCallback, AjaxErrorCallback, AjaxFormItemValue, AjaxOptionsModifier, AjaxSetting, AjaxSuccessCallback} from './types';
 
 function setHeader(headers: HeadersInit, name: string, value: string) {
     if (headers instanceof Headers) {
@@ -72,7 +72,9 @@ export function createFormData(data: string | FormData | URLSearchParams | Recor
     return formData;
 }
 
-export class Ajax<T> {
+export class Ajax<T = unknown> {
+    static globalBeforeSends: AjaxBeforeSendCallback[] = [];
+
     private declare _timeoutID: number;
 
     private _controller: AbortController;
@@ -199,9 +201,6 @@ export class Ajax<T> {
             ...initOptions
         } = this.setting;
 
-        if (beforeSend?.(initOptions) === false) {
-            return;
-        }
         if (type) {
             initOptions.method = type;
         }
@@ -227,6 +226,21 @@ export class Ajax<T> {
                 this.abort();
             });
         }
+
+        const beforeSends = [...(this.constructor as typeof Ajax).globalBeforeSends, beforeSend];
+        for (const callback of beforeSends) {
+            if (!callback) {
+                continue;
+            }
+            const result = callback.call(this, initOptions);
+            if (result === false) {
+                return;
+            }
+            if (result) {
+                Object.assign(initOptions, result);
+            }
+        }
+
         if (success) {
             this.success(success);
         }