diff --git a/easyflow-ui-admin/app/src/router/__tests__/chunk-error-reload.test.ts b/easyflow-ui-admin/app/src/router/__tests__/chunk-error-reload.test.ts
new file mode 100644
index 00000000..71332730
--- /dev/null
+++ b/easyflow-ui-admin/app/src/router/__tests__/chunk-error-reload.test.ts
@@ -0,0 +1,26 @@
+import { createRouter, createWebHashHistory } from 'vue-router';
+
+import { describe, expect, it } from 'vitest';
+
+import { resolveChunkReloadHref } from '../guard';
+
+describe('chunk error reload', () => {
+  it('preserves the deployment base and hash route', () => {
+    const router = createRouter({
+      history: createWebHashHistory('/flow/'),
+      routes: [
+        {
+          component: { template: '<div>workflow</div>' },
+          path: '/ai/workflow',
+        },
+      ],
+    });
+
+    const href = resolveChunkReloadHref(router, '/ai/workflow?source=sidebar');
+
+    expect(href).toBe('#/ai/workflow?source=sidebar');
+    expect(new URL(href, 'https://easyflowtech.cn/flow/').href).toBe(
+      'https://easyflowtech.cn/flow/#/ai/workflow?source=sidebar',
+    );
+  });
+});
diff --git a/easyflow-ui-admin/app/src/router/guard.ts b/easyflow-ui-admin/app/src/router/guard.ts
index edc56ce3..b96ec685 100644
--- a/easyflow-ui-admin/app/src/router/guard.ts
+++ b/easyflow-ui-admin/app/src/router/guard.ts
@@ -71,6 +71,10 @@ function isDynamicImportChunkError(error: unknown) {
   );
 }
 
+function resolveChunkReloadHref(router: Router, fullPath: string) {
+  return router.resolve(fullPath).href;
+}
+
 function setupChunkErrorGuard(router: Router) {
   router.onError((error, to) => {
     if (!isDynamicImportChunkError(error)) {
@@ -94,7 +98,7 @@ function setupChunkErrorGuard(router: Router) {
       return;
     }
     sessionStorage.setItem(CHUNK_ERROR_RELOAD_KEY, fullPath);
-    window.location.assign(fullPath);
+    window.location.assign(resolveChunkReloadHref(router, fullPath));
   });
 
   router.isReady().finally(() => {
@@ -325,4 +329,4 @@ function createRouterGuard(router: Router) {
   setupChunkErrorGuard(router);
 }
 
-export { createRouterGuard };
+export { createRouterGuard, resolveChunkReloadHref };
diff --git a/easyflow-ui-admin/package.json b/easyflow-ui-admin/package.json
index f0b3309d..df999b97 100644
--- a/easyflow-ui-admin/package.json
+++ b/easyflow-ui-admin/package.json
@@ -30,7 +30,7 @@
     "preview": "turbo-run preview",
     "publint": "vsh publint",
     "reinstall": "pnpm clean --del-lock && pnpm install",
-    "test:deployment-contract": "vitest run --dom app/vite-base-path-redirect.test.ts app/src/startup-error.test.ts app/src/router/__tests__/environment-contract.test.ts app/src/router/navigation-user-info.test.ts app/src/utils/share-route-context.test.ts app/src/utils/__tests__/login-redirect.test.ts app/src/views/ai/workflow/workflow-share-context.test.ts",
+    "test:deployment-contract": "vitest run --dom app/vite-base-path-redirect.test.ts app/src/startup-error.test.ts app/src/router/__tests__/environment-contract.test.ts app/src/router/__tests__/chunk-error-reload.test.ts app/src/router/navigation-user-info.test.ts app/src/utils/share-route-context.test.ts app/src/utils/__tests__/login-redirect.test.ts app/src/views/ai/workflow/workflow-share-context.test.ts",
     "test:unit": "vitest run --dom",
     "test:e2e": "turbo run test:e2e",
     "update:deps": "npx taze -r -w",
diff --git a/easyflow-ui-admin/packages/@core/base/shared/src/utils/__tests__/window.test.ts b/easyflow-ui-admin/packages/@core/base/shared/src/utils/__tests__/window.test.ts
index ebb04bb0..105c7dfe 100644
--- a/easyflow-ui-admin/packages/@core/base/shared/src/utils/__tests__/window.test.ts
+++ b/easyflow-ui-admin/packages/@core/base/shared/src/utils/__tests__/window.test.ts
@@ -1,17 +1,20 @@
 import { afterEach, beforeEach, describe, expect, it, vi } from 'vitest';
 
-import { openWindow } from '../window';
+import { openRouteInNewWindow, openWindow } from '../window';
 
 describe('openWindow', () => {
   // 保存原始的 window.open 函数
   let originalOpen: typeof window.open;
+  let originalUrl: string;
 
   beforeEach(() => {
     originalOpen = window.open;
+    originalUrl = window.location.href;
   });
 
   afterEach(() => {
     window.open = originalOpen;
+    window.history.replaceState({}, '', originalUrl);
   });
 
   it('should call window.open with correct arguments', () => {
@@ -30,4 +33,17 @@ describe('openWindow', () => {
       'noopener=yes,noreferrer=yes',
     );
   });
+
+  it('should preserve a router-resolved base and hash route', () => {
+    window.history.replaceState({}, '', '/flow/#/dashboard');
+    window.open = vi.fn();
+
+    openRouteInNewWindow('#/ai/workflow');
+
+    expect(window.open).toHaveBeenCalledWith(
+      `${window.location.origin}/flow/#/ai/workflow`,
+      '_blank',
+      'noopener=yes,noreferrer=yes',
+    );
+  });
 });
diff --git a/easyflow-ui-admin/packages/@core/base/shared/src/utils/window.ts b/easyflow-ui-admin/packages/@core/base/shared/src/utils/window.ts
index 2d8697de..53415b84 100644
--- a/easyflow-ui-admin/packages/@core/base/shared/src/utils/window.ts
+++ b/easyflow-ui-admin/packages/@core/base/shared/src/utils/window.ts
@@ -25,13 +25,10 @@ function openWindow(url: string, options: OpenWindowOptions = {}): void {
 
 /**
  * 在新窗口中打开路由。
- * @param path
+ * @param href Vue Router 解析后的地址
  */
-function openRouteInNewWindow(path: string) {
-  const { hash, origin } = location;
-  const fullPath = path.startsWith('/') ? path : `/${path}`;
-  const url = `${origin}${hash && !fullPath.startsWith('/#') ? '/#' : ''}${fullPath}`;
-  openWindow(url, { target: '_blank' });
+function openRouteInNewWindow(href: string) {
+  openWindow(new URL(href, location.href).href, { target: '_blank' });
 }
 
 export { openRouteInNewWindow, openWindow };
diff --git a/easyflow-ui-admin/packages/effects/hooks/src/use-tabs.ts b/easyflow-ui-admin/packages/effects/hooks/src/use-tabs.ts
index 57dd8f2c..a42918be 100644
--- a/easyflow-ui-admin/packages/effects/hooks/src/use-tabs.ts
+++ b/easyflow-ui-admin/packages/effects/hooks/src/use-tabs.ts
@@ -47,7 +47,7 @@ export function useTabs() {
   }
 
   async function openTabInNewWindow(tab?: RouteLocationNormalized) {
-    await tabbarStore.openTabInNewWindow(tab || route);
+    await tabbarStore.openTabInNewWindow(tab || route, router);
   }
 
   async function closeTabByKey(key: string) {
diff --git a/easyflow-ui-admin/packages/stores/src/modules/tabbar.ts b/easyflow-ui-admin/packages/stores/src/modules/tabbar.ts
index 5a3d20fa..c826644c 100644
--- a/easyflow-ui-admin/packages/stores/src/modules/tabbar.ts
+++ b/easyflow-ui-admin/packages/stores/src/modules/tabbar.ts
@@ -307,9 +307,11 @@ export const useTabbarStore = defineStore('core-tabbar', {
     /**
      * @zh_CN 新窗口打开标签页
      * @param tab
+     * @param router
      */
-    async openTabInNewWindow(tab: TabDefinition) {
-      openRouteInNewWindow(tab.fullPath || tab.path);
+    async openTabInNewWindow(tab: TabDefinition, router: Router) {
+      const href = router.resolve(tab.fullPath || tab.path).href;
+      openRouteInNewWindow(href);
     },
 
     /**
diff --git a/easyflow-ui-usercenter/packages/@core/base/shared/src/utils/__tests__/window.test.ts b/easyflow-ui-usercenter/packages/@core/base/shared/src/utils/__tests__/window.test.ts
index ebb04bb0..105c7dfe 100644
--- a/easyflow-ui-usercenter/packages/@core/base/shared/src/utils/__tests__/window.test.ts
+++ b/easyflow-ui-usercenter/packages/@core/base/shared/src/utils/__tests__/window.test.ts
@@ -1,17 +1,20 @@
 import { afterEach, beforeEach, describe, expect, it, vi } from 'vitest';
 
-import { openWindow } from '../window';
+import { openRouteInNewWindow, openWindow } from '../window';
 
 describe('openWindow', () => {
   // 保存原始的 window.open 函数
   let originalOpen: typeof window.open;
+  let originalUrl: string;
 
   beforeEach(() => {
     originalOpen = window.open;
+    originalUrl = window.location.href;
   });
 
   afterEach(() => {
     window.open = originalOpen;
+    window.history.replaceState({}, '', originalUrl);
   });
 
   it('should call window.open with correct arguments', () => {
@@ -30,4 +33,17 @@ describe('openWindow', () => {
       'noopener=yes,noreferrer=yes',
     );
   });
+
+  it('should preserve a router-resolved base and hash route', () => {
+    window.history.replaceState({}, '', '/flow/#/dashboard');
+    window.open = vi.fn();
+
+    openRouteInNewWindow('#/ai/workflow');
+
+    expect(window.open).toHaveBeenCalledWith(
+      `${window.location.origin}/flow/#/ai/workflow`,
+      '_blank',
+      'noopener=yes,noreferrer=yes',
+    );
+  });
 });
diff --git a/easyflow-ui-usercenter/packages/@core/base/shared/src/utils/window.ts b/easyflow-ui-usercenter/packages/@core/base/shared/src/utils/window.ts
index 2d8697de..53415b84 100644
--- a/easyflow-ui-usercenter/packages/@core/base/shared/src/utils/window.ts
+++ b/easyflow-ui-usercenter/packages/@core/base/shared/src/utils/window.ts
@@ -25,13 +25,10 @@ function openWindow(url: string, options: OpenWindowOptions = {}): void {
 
 /**
  * 在新窗口中打开路由。
- * @param path
+ * @param href Vue Router 解析后的地址
  */
-function openRouteInNewWindow(path: string) {
-  const { hash, origin } = location;
-  const fullPath = path.startsWith('/') ? path : `/${path}`;
-  const url = `${origin}${hash && !fullPath.startsWith('/#') ? '/#' : ''}${fullPath}`;
-  openWindow(url, { target: '_blank' });
+function openRouteInNewWindow(href: string) {
+  openWindow(new URL(href, location.href).href, { target: '_blank' });
 }
 
 export { openRouteInNewWindow, openWindow };
diff --git a/easyflow-ui-usercenter/packages/effects/hooks/src/use-tabs.ts b/easyflow-ui-usercenter/packages/effects/hooks/src/use-tabs.ts
index 57dd8f2c..a42918be 100644
--- a/easyflow-ui-usercenter/packages/effects/hooks/src/use-tabs.ts
+++ b/easyflow-ui-usercenter/packages/effects/hooks/src/use-tabs.ts
@@ -47,7 +47,7 @@ export function useTabs() {
   }
 
   async function openTabInNewWindow(tab?: RouteLocationNormalized) {
-    await tabbarStore.openTabInNewWindow(tab || route);
+    await tabbarStore.openTabInNewWindow(tab || route, router);
   }
 
   async function closeTabByKey(key: string) {
diff --git a/easyflow-ui-usercenter/packages/stores/src/modules/tabbar.ts b/easyflow-ui-usercenter/packages/stores/src/modules/tabbar.ts
index 8463a60f..461ed1ba 100644
--- a/easyflow-ui-usercenter/packages/stores/src/modules/tabbar.ts
+++ b/easyflow-ui-usercenter/packages/stores/src/modules/tabbar.ts
@@ -307,9 +307,11 @@ export const useTabbarStore = defineStore('core-tabbar', {
     /**
      * @zh_CN 新窗口打开标签页
      * @param tab
+     * @param router
      */
-    async openTabInNewWindow(tab: TabDefinition) {
-      openRouteInNewWindow(tab.fullPath || tab.path);
+    async openTabInNewWindow(tab: TabDefinition, router: Router) {
+      const href = router.resolve(tab.fullPath || tab.path).href;
+      openRouteInNewWindow(href);
     },
 
     /**