diff --git a/src/main/resolve/backup.ts b/src/main/resolve/backup.ts
index c0a7973..b6fdb94 100644
--- a/src/main/resolve/backup.ts
+++ b/src/main/resolve/backup.ts
@@ -19,7 +19,8 @@ export async function webdavBackup(): Promise<boolean> {
     webdavUrl = '',
     webdavUsername = '',
     webdavPassword = '',
-    webdavDir = 'mihomo-party'
+    webdavDir = 'mihomo-party',
+    webdavMaxBackups = 0
   } = await getAppConfig()
   const zip = new AdmZip()
 
@@ -44,7 +45,41 @@ export async function webdavBackup(): Promise<boolean> {
     // ignore
   }
 
-  return await client.putFileContents(`${webdavDir}/${zipFileName}`, zip.toBuffer())
+  const result = await client.putFileContents(`${webdavDir}/${zipFileName}`, zip.toBuffer())
+
+  if (webdavMaxBackups > 0) {
+    try {
+      const files = await client.getDirectoryContents(webdavDir, { glob: '*.zip' })
+      const fileList = Array.isArray(files) ? files : files.data
+
+      const currentPlatformFiles = fileList.filter((file) => {
+        return file.basename.startsWith(`${process.platform}_`)
+      })
+
+      currentPlatformFiles.sort((a, b) => {
+        const timeA = a.basename.match(/_(\d{4}-\d{2}-\d{2}_\d{2}-\d{2}-\d{2})\.zip$/)?.[1] || ''
+        const timeB = b.basename.match(/_(\d{4}-\d{2}-\d{2}_\d{2}-\d{2}-\d{2})\.zip$/)?.[1] || ''
+        return timeB.localeCompare(timeA)
+      })
+
+      if (currentPlatformFiles.length > webdavMaxBackups) {
+        const filesToDelete = currentPlatformFiles.slice(webdavMaxBackups)
+
+        for (let i = 0; i < filesToDelete.length; i++) {
+          const file = filesToDelete[i]
+          await client.deleteFile(`${webdavDir}/${file.basename}`)
+
+          if (i < filesToDelete.length - 1) {
+            await new Promise((resolve) => setTimeout(resolve, 500))
+          }
+        }
+      }
+    } catch (error) {
+      console.error('Failed to clean up old backup files:', error)
+    }
+  }
+
+  return result
 }
 
 export async function webdavRestore(filename: string): Promise<void> {
diff --git a/src/renderer/src/components/settings/webdav-config.tsx b/src/renderer/src/components/settings/webdav-config.tsx
index 4480be4..820c5bd 100644
--- a/src/renderer/src/components/settings/webdav-config.tsx
+++ b/src/renderer/src/components/settings/webdav-config.tsx
@@ -1,7 +1,7 @@
 import React, { useState } from 'react'
 import SettingCard from '../base/base-setting-card'
 import SettingItem from '../base/base-setting-item'
-import { Button, Input } from '@heroui/react'
+import { Button, Input, Select, SelectItem } from '@heroui/react'
 import { listWebdavBackups, webdavBackup } from '@renderer/utils/ipc'
 import WebdavRestoreModal from './webdav-restore-modal'
 import debounce from '@renderer/utils/debounce'
@@ -11,16 +11,31 @@ import { useTranslation } from 'react-i18next'
 const WebdavConfig: React.FC = () => {
   const { t } = useTranslation()
   const { appConfig, patchAppConfig } = useAppConfig()
-  const { webdavUrl, webdavUsername, webdavPassword, webdavDir = 'mihomo-party' } = appConfig || {}
+  const {
+    webdavUrl,
+    webdavUsername,
+    webdavPassword,
+    webdavDir = 'mihomo-party',
+    webdavMaxBackups = 0
+  } = appConfig || {}
   const [backuping, setBackuping] = useState(false)
   const [restoring, setRestoring] = useState(false)
   const [filenames, setFilenames] = useState<string[]>([])
   const [restoreOpen, setRestoreOpen] = useState(false)
 
-  const [webdav, setWebdav] = useState({ webdavUrl, webdavUsername, webdavPassword, webdavDir })
-  const setWebdavDebounce = debounce(({ webdavUrl, webdavUsername, webdavPassword, webdavDir }) => {
-    patchAppConfig({ webdavUrl, webdavUsername, webdavPassword, webdavDir })
-  }, 500)
+  const [webdav, setWebdav] = useState({
+    webdavUrl,
+    webdavUsername,
+    webdavPassword,
+    webdavDir,
+    webdavMaxBackups
+  })
+  const setWebdavDebounce = debounce(
+    ({ webdavUrl, webdavUsername, webdavPassword, webdavDir, webdavMaxBackups }) => {
+      patchAppConfig({ webdavUrl, webdavUsername, webdavPassword, webdavDir, webdavMaxBackups })
+    },
+    500
+  )
   const handleBackup = async (): Promise<void> => {
     setBackuping(true)
     try {
@@ -98,6 +113,28 @@ const WebdavConfig: React.FC = () => {
             }}
           />
         </SettingItem>
+        <SettingItem title={t('webdav.maxBackups')} divider>
+          <Select
+            classNames={{ trigger: 'data-[hover=true]:bg-default-200' }}
+            className="w-[150px]"
+            size="sm"
+            selectedKeys={new Set([webdav.webdavMaxBackups.toString()])}
+            aria-label={t('webdav.maxBackups')}
+            onSelectionChange={(v) => {
+              const value = Number.parseInt(Array.from(v)[0] as string, 10)
+              setWebdav({ ...webdav, webdavMaxBackups: value })
+              setWebdavDebounce({ ...webdav, webdavMaxBackups: value })
+            }}
+          >
+            <SelectItem key="0">{t('webdav.noLimit')}</SelectItem>
+            <SelectItem key="1">1</SelectItem>
+            <SelectItem key="3">3</SelectItem>
+            <SelectItem key="5">5</SelectItem>
+            <SelectItem key="10">10</SelectItem>
+            <SelectItem key="15">15</SelectItem>
+            <SelectItem key="20">20</SelectItem>
+          </Select>
+        </SettingItem>
         <div className="flex justify0between">
           <Button isLoading={backuping} fullWidth size="sm" className="mr-1" onPress={handleBackup}>
             {t('webdav.backup')}
diff --git a/src/renderer/src/locales/en-US.json b/src/renderer/src/locales/en-US.json
index 2762830..ef961da 100644
--- a/src/renderer/src/locales/en-US.json
+++ b/src/renderer/src/locales/en-US.json
@@ -179,6 +179,8 @@
   "webdav.dir": "WebDAV Backup Directory",
   "webdav.username": "WebDAV Username",
   "webdav.password": "WebDAV Password",
+  "webdav.maxBackups": "Max Backups",
+  "webdav.noLimit": "No Limit",
   "webdav.backup": "Backup",
   "webdav.restore.title": "Restore Backup",
   "webdav.restore.noBackups": "No backups available",
diff --git a/src/renderer/src/locales/fa-IR.json b/src/renderer/src/locales/fa-IR.json
index 7c4e8bd..4a971ec 100644
--- a/src/renderer/src/locales/fa-IR.json
+++ b/src/renderer/src/locales/fa-IR.json
@@ -179,6 +179,8 @@
   "webdav.dir": "پوشه پشتیبان‌گیری WebDAV",
   "webdav.username": "نام کاربری WebDAV",
   "webdav.password": "رمز عبور WebDAV",
+  "webdav.maxBackups": "حداکثر نسخه پشتیبان",
+  "webdav.noLimit": "بدون محدودیت",
   "webdav.backup": "پشتیبان‌گیری",
   "webdav.restore.title": "بازیابی پشتیبان",
   "webdav.restore.noBackups": "هیچ پشتیبانی موجود نیست",
diff --git a/src/renderer/src/locales/ru-RU.json b/src/renderer/src/locales/ru-RU.json
index 74af269..ae9fa6d 100644
--- a/src/renderer/src/locales/ru-RU.json
+++ b/src/renderer/src/locales/ru-RU.json
@@ -179,6 +179,8 @@
   "webdav.dir": "Каталог резервных копий WebDAV",
   "webdav.username": "Имя пользователя WebDAV",
   "webdav.password": "Пароль WebDAV",
+  "webdav.maxBackups": "Максимум резервных копий",
+  "webdav.noLimit": "Без ограничений",
   "webdav.backup": "Резервное копирование",
   "webdav.restore.title": "Восстановление резервной копии",
   "webdav.restore.noBackups": "Нет доступных резервных копий",
diff --git a/src/renderer/src/locales/zh-CN.json b/src/renderer/src/locales/zh-CN.json
index d3ce34a..490a98d 100644
--- a/src/renderer/src/locales/zh-CN.json
+++ b/src/renderer/src/locales/zh-CN.json
@@ -179,6 +179,8 @@
   "webdav.dir": "WebDAV 备份目录",
   "webdav.username": "WebDAV 用户名",
   "webdav.password": "WebDAV 密码",
+  "webdav.maxBackups": "最大备份数",
+  "webdav.noLimit": "不限制",
   "webdav.backup": "备份",
   "webdav.restore.title": "恢复备份",
   "webdav.restore.noBackups": "还没有备份",
diff --git a/src/shared/types.d.ts b/src/shared/types.d.ts
index b761097..8e37812 100644
--- a/src/shared/types.d.ts
+++ b/src/shared/types.d.ts
@@ -284,6 +284,7 @@ interface IAppConfig {
   webdavDir?: string
   webdavUsername?: string
   webdavPassword?: string
+  webdavMaxBackups?: number
   useNameserverPolicy: boolean
   nameserverPolicy: { [key: string]: string | string[] }
   showWindowShortcut?: string