diff --git a/ruoyi-modules/ruoyi-system/src/main/java/org/dromara/system/domain/vo/RouterVo.java b/ruoyi-modules/ruoyi-system/src/main/java/org/dromara/system/domain/vo/RouterVo.java
index d56e09da..9a6fee4b 100644
--- a/ruoyi-modules/ruoyi-system/src/main/java/org/dromara/system/domain/vo/RouterVo.java
+++ b/ruoyi-modules/ruoyi-system/src/main/java/org/dromara/system/domain/vo/RouterVo.java
@@ -59,4 +59,9 @@ public class RouterVo {
      */
     private List<RouterVo> children;
 
+    /**
+     * 系统编码（用于前端按菜单组过滤）
+     */
+    private String systemCode;
+
 }
diff --git a/ruoyi-modules/ruoyi-system/src/main/java/org/dromara/system/service/impl/SysMenuServiceImpl.java b/ruoyi-modules/ruoyi-system/src/main/java/org/dromara/system/service/impl/SysMenuServiceImpl.java
index 554e8dd5..8a309e99 100644
--- a/ruoyi-modules/ruoyi-system/src/main/java/org/dromara/system/service/impl/SysMenuServiceImpl.java
+++ b/ruoyi-modules/ruoyi-system/src/main/java/org/dromara/system/service/impl/SysMenuServiceImpl.java
@@ -217,6 +217,7 @@ public class SysMenuServiceImpl implements ISysMenuService {
             router.setPath(menu.getRouterPath());
             router.setComponent(menu.getComponentInfo());
             router.setQuery(menu.getQueryParam());
+            router.setSystemCode(menu.getSystemCode());
             router.setMeta(new MetaVo(menu.getMenuName(), menu.getIcon(), StringUtils.equals("1", menu.getIsCache()), menu.getPath(), menu.getRemark()));
             List<SysMenu> cMenus = menu.getChildren();
             if (CollUtil.isNotEmpty(cMenus) && SystemConstants.TYPE_DIR.equals(menu.getMenuType())) {
diff --git a/zdxt-web-client/zdxt-admin-plus-ui/src/api/menu.ts b/zdxt-web-client/zdxt-admin-plus-ui/src/api/menu.ts
index c0f4f29a..a3ae80e1 100644
--- a/zdxt-web-client/zdxt-admin-plus-ui/src/api/menu.ts
+++ b/zdxt-web-client/zdxt-admin-plus-ui/src/api/menu.ts
@@ -3,10 +3,9 @@ import { AxiosPromise } from 'axios';
 import { RouteRecordRaw } from 'vue-router';
 
 // 获取路由
-export function getRouters(systemCode?: string): AxiosPromise<RouteRecordRaw[]> {
+export function getRouters(): AxiosPromise<RouteRecordRaw[]> {
   return request({
-    url: '/system/menu/getRoutersBySystemCode',
-    method: 'get',
-    params: { systemCode }
+    url: '/system/menu/getRouters',
+    method: 'get'
   });
 }
diff --git a/zdxt-web-client/zdxt-admin-plus-ui/src/permission.ts b/zdxt-web-client/zdxt-admin-plus-ui/src/permission.ts
index 7387e8c5..9524f1c2 100644
--- a/zdxt-web-client/zdxt-admin-plus-ui/src/permission.ts
+++ b/zdxt-web-client/zdxt-admin-plus-ui/src/permission.ts
@@ -7,7 +7,7 @@ import { isHttp, isPathMatch } from '@/utils/validate';
 import { isRelogin } from '@/utils/request';
 import { useUserStore } from '@/store/modules/user';
 import { useSettingsStore } from '@/store/modules/settings';
-import { usePermissionStore } from '@/store/modules/permission';
+import { usePermissionStore, CATCH_ALL_ROUTE_NAME } from '@/store/modules/permission';
 import { ElMessage } from 'element-plus/es';
 
 NProgress.configure({ showSpinner: false });
@@ -46,7 +46,7 @@ router.beforeEach(async (to, from, next) => {
             }
           });
           // 所有动态路由加载完成后，注入404通配路由，避免刷新时提前匹配
-          router.addRoute({ path: '/:pathMatch(.*)*', component: () => import('@/views/error/404.vue') });
+          router.addRoute({ name: CATCH_ALL_ROUTE_NAME, path: '/:pathMatch(.*)*', component: () => import('@/views/error/404.vue') });
           // @ts-expect-error hack方法 确保addRoutes已完成
           next({ path: to.path, replace: true, params: to.params, query: to.query, hash: to.hash, name: to.name as string }); // hack方法 确保addRoutes已完成
         }
diff --git a/zdxt-web-client/zdxt-admin-plus-ui/src/store/modules/permission.ts b/zdxt-web-client/zdxt-admin-plus-ui/src/store/modules/permission.ts
index 7a003aed..9c2c0147 100644
--- a/zdxt-web-client/zdxt-admin-plus-ui/src/store/modules/permission.ts
+++ b/zdxt-web-client/zdxt-admin-plus-ui/src/store/modules/permission.ts
@@ -9,6 +9,7 @@ import ParentView from '@/components/ParentView/index.vue';
 import InnerLink from '@/layout/components/InnerLink/index.vue';
 import { ref } from 'vue';
 import { createCustomNameComponent } from '@/utils/createCustomNameComponent';
+import { isHttp } from '@/utils/validate';
 
 // 匹配views里面所有的.vue文件
 const modules = import.meta.glob('./../../views/**/*.vue');
@@ -20,6 +21,9 @@ export interface SystemCodeOption {
   /** 当设置了 iframeUrl 时，切换到该选项会以全屏 iframe 展示，而非加载菜单路由 */
   iframeUrl?: string;
 }
+/** 404 兜底路由名称，方便动态移除和重新添加 */
+export const CATCH_ALL_ROUTE_NAME = 'CatchAll404';
+
 export const systemCodeOptions: SystemCodeOption[] = [
   { label: '首页', value: 'planindex', icon: 'HomeFilled', iframeUrl: '/enforcement-code-v1/statistical/home.html' },
   { label: '执法监督码', value: 'supervisionCode', icon: 'Document' },
@@ -32,6 +36,8 @@ export const usePermissionStore = defineStore('permission', () => {
   const defaultRoutes = ref<RouteRecordRaw[]>([]);
   const topbarRouters = ref<RouteRecordRaw[]>([]);
   const sidebarRouters = ref<RouteRecordRaw[]>([]);
+  /** 缓存后端返回的全量路由原始数据（未经组件转换） */
+  const allRouteDataCache = ref<any[]>([]);
   /** sessionStorage key */
   const SYSTEM_CODE_KEY = 'currentSystemCode';
   /** 当前选中的系统编码（从 sessionStorage 恢复，默认 planindex） */
@@ -71,12 +77,18 @@ export const usePermissionStore = defineStore('permission', () => {
   };
   const generateRoutes = async (systemCode?: string): Promise<RouteRecordRaw[]> => {
     const code = systemCode || currentSystemCode.value;
-    const res = await getRouters(code);
-    const { data } = res;
-    console.log('[路由调试] systemCode =', code, ', 后端返回路由数据 =', JSON.parse(JSON.stringify(data)));
-    const sdata = JSON.parse(JSON.stringify(data));
-    const rdata = JSON.parse(JSON.stringify(data));
-    const defaultData = JSON.parse(JSON.stringify(data));
+    // 仅首次加载时请求后端，后续从缓存取
+    if (allRouteDataCache.value.length === 0) {
+      const res = await getRouters();
+      allRouteDataCache.value = res.data as any[];
+      console.log('[路由调试] 后端返回全量路由数据 =', JSON.parse(JSON.stringify(allRouteDataCache.value)));
+    }
+    // 按当前 systemCode 过滤出匹配的顶层路由
+    const filteredData = allRouteDataCache.value.filter((route: any) => route.systemCode === code);
+    console.log('[路由调试] systemCode =', code, ', 过滤后路由数据 =', JSON.parse(JSON.stringify(filteredData)));
+    const sdata = JSON.parse(JSON.stringify(filteredData));
+    const rdata = JSON.parse(JSON.stringify(filteredData));
+    const defaultData = JSON.parse(JSON.stringify(filteredData));
     const sidebarRoutes = filterAsyncRouter(sdata);
     const rewriteRoutes = filterAsyncRouter(rdata, undefined, true);
     const defaultRoutes = filterAsyncRouter(defaultData);
@@ -152,19 +164,34 @@ export const usePermissionStore = defineStore('permission', () => {
     }
     iframeMode.value = false;
     iframeUrl.value = '';
-    // 移除之前动态添加的路由
-    addRoutes.value.forEach((route) => {
-      if (route.name) {
+
+    // ====== 彻底清理所有动态路由，保证路由表干净 ======
+    // 1. 收集所有静态路由名称（包括子路由）
+    const constantNames = new Set<string | symbol>();
+    const collectNames = (routeList: RouteRecordRaw[]) => {
+      routeList.forEach((r) => {
+        if (r.name) constantNames.add(r.name);
+        if (r.children) collectNames(r.children);
+      });
+    };
+    collectNames(constantRoutes);
+    // 2. 移除所有非静态路由（包括之前的动态业务路由和404兜底路由）
+    router.getRoutes().forEach((route) => {
+      if (route.name && !constantNames.has(route.name)) {
         router.removeRoute(route.name);
       }
     });
-    // 重新生成路由
+
+    // ====== 重新生成并注册路由 ======
     const accessRoutes = await generateRoutes(systemCode);
     accessRoutes.forEach((route) => {
-      if (!router.hasRoute(route.name!)) {
+      if (!isHttp(route.path)) {
         router.addRoute(route);
       }
     });
+    // 重新添加404兜底路由，确保放在所有动态路由之后
+    router.addRoute({ name: CATCH_ALL_ROUTE_NAME, path: '/:pathMatch(.*)*', component: () => import('@/views/error/404.vue') });
+    console.log('[路由调试] switchSystemCode 完成, 当前路由列表 =', router.getRoutes().map((r) => ({ name: r.name, path: r.path })));
   };
 
   return {