diff --git a/Changelog.md b/Changelog.md
index f32e0558b..08d52275f 100644
--- a/Changelog.md
+++ b/Changelog.md
@@ -4,6 +4,7 @@
 
 - 修复 macOS 有线网络 DNS 劫持失败
 - 修复 Monaco 编辑器内右键菜单显示异常
+- 修复设置代理端口时检查端口占用
 
 <details>
 <summary><strong> ✨ 新增功能 </strong></summary>
diff --git a/src-tauri/src/cmd/network.rs b/src-tauri/src/cmd/network.rs
index 3c9aee77b..5ba428dca 100644
--- a/src-tauri/src/cmd/network.rs
+++ b/src-tauri/src/cmd/network.rs
@@ -4,6 +4,7 @@ use clash_verge_logging::{Type, logging};
 use gethostname::gethostname;
 use network_interface::NetworkInterface;
 use serde_yaml_ng::Mapping;
+use std::net::TcpListener;
 use sysproxy::{Autoproxy, Sysproxy};
 use tauri_plugin_clash_verge_sysinfo;
 
@@ -95,3 +96,11 @@ pub fn get_network_interfaces_info() -> CmdResult<Vec<NetworkInterface>> {
 
     Ok(result)
 }
+
+#[tauri::command]
+pub fn is_port_in_use(port: u16) -> bool {
+    match TcpListener::bind(("127.0.0.1", port)) {
+        Ok(_listener) => false,
+        Err(_) => true,
+    }
+}
diff --git a/src-tauri/src/lib.rs b/src-tauri/src/lib.rs
index a81f292cd..08b3c358b 100644
--- a/src-tauri/src/lib.rs
+++ b/src-tauri/src/lib.rs
@@ -137,6 +137,7 @@ mod app_init {
             tauri_plugin_clash_verge_sysinfo::commands::get_app_uptime,
             tauri_plugin_clash_verge_sysinfo::commands::app_is_admin,
             tauri_plugin_clash_verge_sysinfo::commands::export_diagnostic_info,
+            cmd::is_port_in_use,
             cmd::get_sys_proxy,
             cmd::get_auto_proxy,
             cmd::open_app_dir,
diff --git a/src/components/setting/mods/clash-port-viewer.tsx b/src/components/setting/mods/clash-port-viewer.tsx
index a124e29a0..38ef1c0b4 100644
--- a/src/components/setting/mods/clash-port-viewer.tsx
+++ b/src/components/setting/mods/clash-port-viewer.tsx
@@ -9,12 +9,13 @@ import {
   TextField,
 } from "@mui/material";
 import { useLockFn, useRequest } from "ahooks";
-import { forwardRef, useImperativeHandle, useState } from "react";
+import { forwardRef, useImperativeHandle, useRef, useState } from "react";
 import { useTranslation } from "react-i18next";
 
 import { BaseDialog, Switch } from "@/components/base";
 import { useClashInfo } from "@/hooks/use-clash";
 import { useVerge } from "@/hooks/use-verge";
+import { isPortInUse } from "@/services/cmds";
 import { showNotice } from "@/services/notice-service";
 import getSystem from "@/utils/get-system";
 
@@ -59,6 +60,9 @@ export const ClashPortViewer = forwardRef<ClashPortViewerRef>((_, ref) => {
     verge?.verge_tproxy_enabled ?? false,
   );
 
+  // 保存打开对话框时的原始值，用于在检测到端口被占用时恢复
+  const originalPortsRef = useRef<Record<string, any> | null>(null);
+
   // 添加保存请求，防止GUI卡死
   const { loading, run: saveSettings } = useRequest(
     async (params: { clashConfig: any; vergeConfig: any }) => {
@@ -82,15 +86,27 @@ export const ClashPortViewer = forwardRef<ClashPortViewerRef>((_, ref) => {
 
   useImperativeHandle(ref, () => ({
     open: () => {
-      setMixedPort(verge?.verge_mixed_port ?? clashInfo?.mixed_port ?? 7897);
-      setSocksPort(verge?.verge_socks_port ?? 7898);
-      setSocksEnabled(verge?.verge_socks_enabled ?? false);
-      setHttpPort(verge?.verge_port ?? 7899);
-      setHttpEnabled(verge?.verge_http_enabled ?? false);
-      setRedirPort(verge?.verge_redir_port ?? 7895);
-      setRedirEnabled(verge?.verge_redir_enabled ?? false);
-      setTproxyPort(verge?.verge_tproxy_port ?? 7896);
-      setTproxyEnabled(verge?.verge_tproxy_enabled ?? false);
+      originalPortsRef.current = {
+        mixedPort: verge?.verge_mixed_port ?? clashInfo?.mixed_port ?? 7897,
+        socksPort: verge?.verge_socks_port ?? 7898,
+        socksEnabled: verge?.verge_socks_enabled ?? false,
+        httpPort: verge?.verge_port ?? 7899,
+        httpEnabled: verge?.verge_http_enabled ?? false,
+        redirPort: verge?.verge_redir_port ?? 7895,
+        redirEnabled: verge?.verge_redir_enabled ?? false,
+        tproxyPort: verge?.verge_tproxy_port ?? 7896,
+        tproxyEnabled: verge?.verge_tproxy_enabled ?? false,
+      };
+
+      setMixedPort(originalPortsRef.current.mixedPort);
+      setSocksPort(originalPortsRef.current.socksPort);
+      setSocksEnabled(originalPortsRef.current.socksEnabled);
+      setHttpPort(originalPortsRef.current.httpPort);
+      setHttpEnabled(originalPortsRef.current.httpEnabled);
+      setRedirPort(originalPortsRef.current.redirPort);
+      setRedirEnabled(originalPortsRef.current.redirEnabled);
+      setTproxyPort(originalPortsRef.current.tproxyPort);
+      setTproxyEnabled(originalPortsRef.current.tproxyEnabled);
       setOpen(true);
     },
     close: () => setOpen(false),
@@ -124,6 +140,47 @@ export const ClashPortViewer = forwardRef<ClashPortViewerRef>((_, ref) => {
       return;
     }
 
+    for (const port of portList) {
+      try {
+        const inUse = await isPortInUse(port);
+        if (inUse) {
+          showNotice.error("settings.modals.clashPort.messages.portInUse", {
+            port,
+          });
+          const original = originalPortsRef.current;
+          if (original) {
+            setMixedPort(original.mixedPort);
+            setSocksPort(original.socksPort);
+            setSocksEnabled(original.socksEnabled);
+            setHttpPort(original.httpPort);
+            setHttpEnabled(original.httpEnabled);
+            setRedirPort(original.redirPort);
+            setRedirEnabled(original.redirEnabled);
+            setTproxyPort(original.tproxyPort);
+            setTproxyEnabled(original.tproxyEnabled);
+          } else {
+            setMixedPort(
+              verge?.verge_mixed_port ?? clashInfo?.mixed_port ?? 7897,
+            );
+            setSocksPort(verge?.verge_socks_port ?? 7898);
+            setSocksEnabled(verge?.verge_socks_enabled ?? false);
+            setHttpPort(verge?.verge_port ?? 7899);
+            setHttpEnabled(verge?.verge_http_enabled ?? false);
+            setRedirPort(verge?.verge_redir_port ?? 7895);
+            setRedirEnabled(verge?.verge_redir_enabled ?? false);
+            setTproxyPort(verge?.verge_tproxy_port ?? 7896);
+            setTproxyEnabled(verge?.verge_tproxy_enabled ?? false);
+          }
+          return;
+        }
+      } catch (error) {
+        showNotice.error("settings.modals.clashPort.messages.portCheckFailed", {
+          error,
+        });
+        return;
+      }
+    }
+
     // 准备配置数据
     const clashConfig = {
       "mixed-port": mixedPort,
diff --git a/src/hooks/use-clash.ts b/src/hooks/use-clash.ts
index 8ee79119a..34dfca9fd 100644
--- a/src/hooks/use-clash.ts
+++ b/src/hooks/use-clash.ts
@@ -4,8 +4,8 @@ import { getVersion } from "tauri-plugin-mihomo-api";
 
 import {
   getClashInfo,
-  patchClashConfig,
   getRuntimeConfig,
+  patchClashConfig,
 } from "@/services/cmds";
 
 const PORT_KEYS = [
diff --git a/src/locales/ar/settings.json b/src/locales/ar/settings.json
index 528623bcf..fa0f10c00 100644
--- a/src/locales/ar/settings.json
+++ b/src/locales/ar/settings.json
@@ -252,6 +252,7 @@
         "random": "منفذ عشوائي"
       },
       "messages": {
+        "portInUse": "Port {{port}} is already in use",
         "saved": "Port settings saved",
         "saveFailed": "Failed to save port settings"
       }
diff --git a/src/locales/de/settings.json b/src/locales/de/settings.json
index 2b94147d5..647b768f2 100644
--- a/src/locales/de/settings.json
+++ b/src/locales/de/settings.json
@@ -252,6 +252,7 @@
         "random": "Zufälliger Port"
       },
       "messages": {
+        "portInUse": "Port {{port}} is already in use",
         "saved": "Port settings saved",
         "saveFailed": "Failed to save port settings"
       }
diff --git a/src/locales/en/settings.json b/src/locales/en/settings.json
index dd5298fad..fd7e90047 100644
--- a/src/locales/en/settings.json
+++ b/src/locales/en/settings.json
@@ -252,6 +252,7 @@
         "random": "Random Port"
       },
       "messages": {
+        "portInUse": "Port {{port}} is already in use",
         "saved": "Port settings saved",
         "saveFailed": "Failed to save port settings"
       }
diff --git a/src/locales/es/settings.json b/src/locales/es/settings.json
index 88fd88d43..8f3e7bea1 100644
--- a/src/locales/es/settings.json
+++ b/src/locales/es/settings.json
@@ -252,6 +252,7 @@
         "random": "Puerto aleatorio"
       },
       "messages": {
+        "portInUse": "Port {{port}} is already in use",
         "saved": "Port settings saved",
         "saveFailed": "Failed to save port settings"
       }
diff --git a/src/locales/fa/settings.json b/src/locales/fa/settings.json
index b23c91307..4be31a0f5 100644
--- a/src/locales/fa/settings.json
+++ b/src/locales/fa/settings.json
@@ -252,6 +252,7 @@
         "random": "پورت تصادفی"
       },
       "messages": {
+        "portInUse": "Port {{port}} is already in use",
         "saved": "Port settings saved",
         "saveFailed": "Failed to save port settings"
       }
diff --git a/src/locales/id/settings.json b/src/locales/id/settings.json
index 3fe7459b5..a18c3ce72 100644
--- a/src/locales/id/settings.json
+++ b/src/locales/id/settings.json
@@ -252,6 +252,7 @@
         "random": "Port Acak"
       },
       "messages": {
+        "portInUse": "Port {{port}} is already in use",
         "saved": "Port settings saved",
         "saveFailed": "Failed to save port settings"
       }
diff --git a/src/locales/jp/settings.json b/src/locales/jp/settings.json
index a735690f2..68636870f 100644
--- a/src/locales/jp/settings.json
+++ b/src/locales/jp/settings.json
@@ -252,6 +252,7 @@
         "random": "ランダムポート"
       },
       "messages": {
+        "portInUse": "Port {{port}} is already in use",
         "saved": "Port settings saved",
         "saveFailed": "Failed to save port settings"
       }
diff --git a/src/locales/ko/settings.json b/src/locales/ko/settings.json
index be368b72a..713be4dbe 100644
--- a/src/locales/ko/settings.json
+++ b/src/locales/ko/settings.json
@@ -252,6 +252,7 @@
         "random": "임의 포트"
       },
       "messages": {
+        "portInUse": "Port {{port}} is already in use",
         "saved": "포트 설정이 저장되었습니다",
         "saveFailed": "포트 설정 저장에 실패했습니다"
       }
diff --git a/src/locales/ru/settings.json b/src/locales/ru/settings.json
index 74144e473..0e708313a 100644
--- a/src/locales/ru/settings.json
+++ b/src/locales/ru/settings.json
@@ -252,6 +252,7 @@
         "random": "Случайный порт"
       },
       "messages": {
+        "portInUse": "Port {{port}} is already in use",
         "saved": "Port settings saved",
         "saveFailed": "Failed to save port settings"
       }
diff --git a/src/locales/tr/settings.json b/src/locales/tr/settings.json
index f0c4f8037..f8f2432c1 100644
--- a/src/locales/tr/settings.json
+++ b/src/locales/tr/settings.json
@@ -252,6 +252,7 @@
         "random": "Rastgele Port"
       },
       "messages": {
+        "portInUse": "Port {{port}} is already in use",
         "saved": "Port settings saved",
         "saveFailed": "Failed to save port settings"
       }
diff --git a/src/locales/tt/settings.json b/src/locales/tt/settings.json
index 9ba86f51e..3451304b4 100644
--- a/src/locales/tt/settings.json
+++ b/src/locales/tt/settings.json
@@ -252,6 +252,7 @@
         "random": "Очраклы порт"
       },
       "messages": {
+        "portInUse": "Port {{port}} is already in use",
         "saved": "Port settings saved",
         "saveFailed": "Failed to save port settings"
       }
diff --git a/src/locales/zh/settings.json b/src/locales/zh/settings.json
index 65a8708b9..d3846f3dc 100644
--- a/src/locales/zh/settings.json
+++ b/src/locales/zh/settings.json
@@ -252,6 +252,7 @@
         "random": "随机端口"
       },
       "messages": {
+        "portInUse": "端口 {{port}} 已被占用",
         "saved": "端口设置已保存",
         "saveFailed": "端口设置保存失败"
       }
diff --git a/src/locales/zhtw/settings.json b/src/locales/zhtw/settings.json
index b3ce2c903..3df1684ba 100644
--- a/src/locales/zhtw/settings.json
+++ b/src/locales/zhtw/settings.json
@@ -252,6 +252,7 @@
         "random": "隨機連接埠"
       },
       "messages": {
+        "portInUse": "Port {{port}} is already in use",
         "saved": "連結埠設定已儲存",
         "saveFailed": "連結埠設定儲存失敗"
       }
diff --git a/src/services/cmds.ts b/src/services/cmds.ts
index cd34ecfc6..a56af4397 100644
--- a/src/services/cmds.ts
+++ b/src/services/cmds.ts
@@ -554,3 +554,12 @@ export const isAdmin = async () => {
 export async function getNextUpdateTime(uid: string) {
   return invoke<number | null>("get_next_update_time", { uid });
 }
+
+export const isPortInUse = async (port: number) => {
+  try {
+    return await invoke<boolean>("is_port_in_use", { port });
+  } catch (error) {
+    console.error("检查端口使用状态失败:", error);
+    return false;
+  }
+};
diff --git a/src/types/generated/i18n-keys.ts b/src/types/generated/i18n-keys.ts
index d186e4f30..7dce9e0d9 100644
--- a/src/types/generated/i18n-keys.ts
+++ b/src/types/generated/i18n-keys.ts
@@ -453,6 +453,7 @@ export const translationKeys = [
   "settings.modals.clashPort.fields.redir",
   "settings.modals.clashPort.fields.tproxy",
   "settings.modals.clashPort.actions.random",
+  "settings.modals.clashPort.messages.portInUse",
   "settings.modals.clashPort.messages.saved",
   "settings.modals.clashPort.messages.saveFailed",
   "settings.modals.clashCore.variants.release",
diff --git a/src/types/generated/i18n-resources.ts b/src/types/generated/i18n-resources.ts
index 9a29fd841..fcb48efe4 100644
--- a/src/types/generated/i18n-resources.ts
+++ b/src/types/generated/i18n-resources.ts
@@ -793,6 +793,7 @@ export interface TranslationResources {
             tproxy: string;
           };
           messages: {
+            portInUse: string;
             saved: string;
             saveFailed: string;
           };