diff --git a/src/Popup/Arrow.tsx b/src/Popup/Arrow.tsx
index 8a2d6a34..324e9ef1 100644
--- a/src/Popup/Arrow.tsx
+++ b/src/Popup/Arrow.tsx
@@ -1,15 +1,17 @@
 import * as React from 'react';
-import type { AlignType } from '../interface';
+import classNames from 'classnames';
+import type { AlignType, ArrowType } from '../interface';
 
 export interface ArrowProps {
   prefixCls: string;
   align: AlignType;
-  arrowX?: number;
-  arrowY?: number;
+  arrow: ArrowType;
 }
 
 export default function Arrow(props: ArrowProps) {
-  const { prefixCls, align, arrowX = 0, arrowY = 0 } = props;
+  const { prefixCls, align, arrow } = props;
+
+  const { x = 0, y = 0, className } = arrow || {};
 
   const arrowRef = React.useRef<HTMLDivElement>();
 
@@ -33,7 +35,7 @@ export default function Arrow(props: ArrowProps) {
 
     // Top & Bottom
     if (popupTB === targetTB || !['t', 'b'].includes(popupTB)) {
-      alignStyle.top = arrowY;
+      alignStyle.top = y;
     } else if (popupTB === 't') {
       alignStyle.top = 0;
     } else {
@@ -42,7 +44,7 @@ export default function Arrow(props: ArrowProps) {
 
     // Left & Right
     if (popupLR === targetLR || !['l', 'r'].includes(popupLR)) {
-      alignStyle.left = arrowX;
+      alignStyle.left = x;
     } else if (popupLR === 'l') {
       alignStyle.left = 0;
     } else {
@@ -51,6 +53,6 @@ export default function Arrow(props: ArrowProps) {
   }
 
   return (
-    <div ref={arrowRef} className={`${prefixCls}-arrow`} style={alignStyle} />
+    <div ref={arrowRef} className={classNames(`${prefixCls}-arrow`, className)} style={alignStyle} />
   );
 }
diff --git a/src/Popup/index.tsx b/src/Popup/index.tsx
index 5162bd32..d20a6ff9 100644
--- a/src/Popup/index.tsx
+++ b/src/Popup/index.tsx
@@ -6,7 +6,7 @@ import useLayoutEffect from 'rc-util/lib/hooks/useLayoutEffect';
 import { composeRef } from 'rc-util/lib/ref';
 import * as React from 'react';
 import type { TriggerProps } from '../';
-import type { AlignType } from '../interface';
+import type { AlignType, ArrowType } from '../interface';
 import Arrow from './Arrow';
 import Mask from './Mask';
 import PopupContent from './PopupContent';
@@ -26,9 +26,7 @@ export interface PopupProps {
 
   // Arrow
   align?: AlignType;
-  arrow?: boolean;
-  arrowX?: number;
-  arrowY?: number;
+  arrow?: ArrowType;
 
   // Open
   open: boolean;
@@ -84,8 +82,6 @@ const Popup = React.forwardRef<HTMLDivElement, PopupProps>((props, ref) => {
     // Arrow
     arrow,
     align,
-    arrowX,
-    arrowY,
 
     // Motion
     motion,
@@ -225,9 +221,8 @@ const Popup = React.forwardRef<HTMLDivElement, PopupProps>((props, ref) => {
                     {arrow && (
                       <Arrow
                         prefixCls={prefixCls}
+                        arrow={arrow}
                         align={align}
-                        arrowX={arrowX}
-                        arrowY={arrowY}
                       />
                     )}
                     <PopupContent cache={!open}>{childNode}</PopupContent>
diff --git a/src/index.tsx b/src/index.tsx
index 0d6bec8a..1e2c254f 100644
--- a/src/index.tsx
+++ b/src/index.tsx
@@ -17,6 +17,8 @@ import useWatch from './hooks/useWatch';
 import type {
   ActionType,
   AlignType,
+  ArrowType,
+  ArrowTypeOuter,
   AnimationType,
   BuildInPlacements,
   TransitionNameType,
@@ -25,7 +27,7 @@ import Popup from './Popup';
 import TriggerWrapper from './TriggerWrapper';
 import { getAlignPopupClassName, getMotion, getWin } from './util';
 
-export type { BuildInPlacements, AlignType, ActionType };
+export type { BuildInPlacements, AlignType, ActionType, ArrowTypeOuter as ArrowType };
 
 export interface TriggerRef {
   forceAlign: VoidFunction;
@@ -104,7 +106,7 @@ export interface TriggerProps {
   alignPoint?: boolean; // Maybe we can support user pass position in the future
 
   // ==================== Arrow ====================
-  arrow?: boolean;
+  arrow?: boolean | ArrowTypeOuter;
 
   // ================= Deprecated ==================
   /** @deprecated Add `className` on `children`. Please add `className` directly instead. */
@@ -625,6 +627,13 @@ export function generateTrigger(
       ...passedProps,
     });
 
+    const innerArrow: ArrowType = arrow ? {
+      // true and Object likely
+      ...(arrow !== true ? arrow : {}),
+      x: arrowX,
+      y: arrowY
+    }: null;
+
     // Render
     return (
       <>
@@ -667,13 +676,11 @@ export function generateTrigger(
             getPopupContainer={getPopupContainer}
             // Arrow
             align={alignInfo}
-            arrow={arrow}
+            arrow={innerArrow}
             // Align
             ready={ready}
             offsetX={offsetX}
             offsetY={offsetY}
-            arrowX={arrowX}
-            arrowY={arrowY}
             onAlign={triggerAlign}
             // Stretch
             stretch={stretch}
diff --git a/src/interface.ts b/src/interface.ts
index 90dcb483..6edf17fb 100644
--- a/src/interface.ts
+++ b/src/interface.ts
@@ -70,6 +70,15 @@ export interface AlignType {
   ignoreShake?: boolean;
 }
 
+export interface ArrowTypeOuter {
+  className?: string;
+}
+
+export type ArrowType = ArrowTypeOuter & {
+  x?: number;
+  y?: number;
+}
+
 export type BuildInPlacements = Record<string, AlignType>;
 
 export type StretchType = string;
@@ -95,4 +104,4 @@ export interface MobileConfig {
   popupClassName?: string;
   popupStyle?: React.CSSProperties;
   popupRender?: (originNode: React.ReactNode) => React.ReactNode;
-}
+}
\ No newline at end of file
diff --git a/tests/arrow.test.jsx b/tests/arrow.test.jsx
index 231ecea5..9947b268 100644
--- a/tests/arrow.test.jsx
+++ b/tests/arrow.test.jsx
@@ -163,5 +163,28 @@ describe('Trigger.Arrow', () => {
       expect(style.top).toBeFalsy();
       expect(style.bottom).toBeFalsy();
     });
+
+    it('arrow classname', async () => {
+      render(
+        <Trigger
+          popupVisible
+          popupAlign={{
+            points: ['cl', 'cr'],
+            autoArrow: false,
+          }}
+          popup={<strong>trigger</strong>}
+          arrow={{
+            className: 'abc',
+          }}
+        >
+          <div />
+        </Trigger>,
+      );
+
+      await awaitFakeTimer();
+
+      const arrowDom = document.querySelector('.rc-trigger-popup-arrow');
+      expect(arrowDom.classList.contains('abc')).toBeTruthy();
+    });
   });
 });