diff --git a/src/renderer/src/components/settings/mihomo-config.tsx b/src/renderer/src/components/settings/mihomo-config.tsx
index 66d00b14..f92aaff5 100644
--- a/src/renderer/src/components/settings/mihomo-config.tsx
+++ b/src/renderer/src/components/settings/mihomo-config.tsx
@@ -13,6 +13,7 @@ const MihomoConfig: React.FC = () => {
   const {
     controlDns = true,
     controlSniff = true,
+    delayTestConcurrency,
     delayTestTimeout,
     githubToken = '',
     autoCloseConnection = true,
@@ -56,6 +57,18 @@ const MihomoConfig: React.FC = () => {
           }}
         ></Input>
       </SettingItem>
+      <SettingItem title="延迟测试并发数量" divider>
+        <Input
+          type="number"
+          size="sm"
+          className="w-[60%]"
+          value={delayTestConcurrency?.toString()}
+          placeholder="默认 50"
+          onValueChange={(v) => {
+            patchAppConfig({ delayTestConcurrency: parseInt(v) })
+          }}
+        />
+      </SettingItem>
       <SettingItem title="延迟测试超时时间" divider>
         <Input
           type="number"
diff --git a/src/renderer/src/pages/proxies.tsx b/src/renderer/src/pages/proxies.tsx
index 7c37a1b7..f264c379 100644
--- a/src/renderer/src/pages/proxies.tsx
+++ b/src/renderer/src/pages/proxies.tsx
@@ -1,12 +1,7 @@
 import { Avatar, Button, Card, CardBody, Chip } from '@nextui-org/react'
 import BasePage from '@renderer/components/base/base-page'
 import { useAppConfig } from '@renderer/hooks/use-app-config'
-import {
-  mihomoChangeProxy,
-  mihomoCloseAllConnections,
-  mihomoGroupDelay,
-  mihomoProxyDelay
-} from '@renderer/utils/ipc'
+import { mihomoChangeProxy, mihomoCloseAllConnections, mihomoProxyDelay } from '@renderer/utils/ipc'
 import { CgDetailsLess, CgDetailsMore } from 'react-icons/cg'
 import { TbCircleLetterD } from 'react-icons/tb'
 import { FaLocationCrosshairs } from 'react-icons/fa6'
@@ -27,7 +22,8 @@ const Proxies: React.FC = () => {
     proxyDisplayMode = 'simple',
     proxyDisplayOrder = 'default',
     autoCloseConnection = true,
-    proxyCols = 'auto'
+    proxyCols = 'auto',
+    delayTestConcurrency = 50
   } = appConfig || {}
   const [cols, setCols] = useState(1)
   const [isOpen, setIsOpen] = useState(Array(groups.length).fill(false))
@@ -79,18 +75,46 @@ const Proxies: React.FC = () => {
   }
 
   const onGroupDelay = async (index: number): Promise<void> => {
+    if (allProxies[index].length === 0) {
+      setIsOpen((prev) => {
+        const newOpen = [...prev]
+        newOpen[index] = true
+        return newOpen
+      })
+    }
     setDelaying((prev) => {
       const newDelaying = [...prev]
       newDelaying[index] = true
       return newDelaying
     })
-    await mihomoGroupDelay(groups[index].name, groups[index].testUrl)
+    // 限制并发数量
+    const result: Promise<void>[] = []
+    const runningList: Promise<void>[] = []
+    for (const proxy of allProxies[index]) {
+      const promise = Promise.resolve().then(async () => {
+        try {
+          await mihomoProxyDelay(proxy.name, groups[index].testUrl)
+        } catch {
+          // ignore
+        } finally {
+          mutate()
+        }
+      })
+      result.push(promise)
+      const running = promise.then(() => {
+        runningList.splice(runningList.indexOf(running), 1)
+      })
+      runningList.push(running)
+      if (runningList.length >= (delayTestConcurrency || 50)) {
+        await Promise.race(runningList)
+      }
+    }
+    await Promise.all(result)
     setDelaying((prev) => {
       const newDelaying = [...prev]
       newDelaying[index] = false
       return newDelaying
     })
-    mutate()
   }
 
   const calcCols = (): number => {
diff --git a/src/shared/types.d.ts b/src/shared/types.d.ts
index 6a553fde..43e016d6 100644
--- a/src/shared/types.d.ts
+++ b/src/shared/types.d.ts
@@ -246,6 +246,7 @@ interface IAppConfig {
   sysProxy: ISysProxyConfig
   maxLogDays: number
   userAgent?: string
+  delayTestConcurrency?: number
   delayTestUrl?: string
   delayTestTimeout?: number
   encryptedPassword?: number[]