diff --git a/src/server/config.ts b/src/server/config.ts
index 6e4b0cc..11a9813 100644
--- a/src/server/config.ts
+++ b/src/server/config.ts
@@ -59,6 +59,7 @@ export function buildConfig(env: NodeJS.ProcessEnv) {
   return {
     authToken: env.AUTH_TOKEN || 'change-me-admin-token',
     proxyToken: env.PROXY_TOKEN || 'change-me-proxy-sk-token',
+    deployHelperToken: parseOptionalSecret(env.DEPLOY_HELPER_TOKEN || env.UPDATE_CENTER_HELPER_TOKEN),
     codexClientId: parseOptionalSecret(env.CODEX_CLIENT_ID) || DEFAULT_CODEX_CLIENT_ID,
     claudeClientId: parseOptionalSecret(env.CLAUDE_CLIENT_ID) || DEFAULT_CLAUDE_CLIENT_ID,
     claudeClientSecret: parseOptionalSecret(env.CLAUDE_CLIENT_SECRET),
diff --git a/src/server/routes/api/updateCenter.test.ts b/src/server/routes/api/updateCenter.test.ts
index b9ff351..ba20e0c 100644
--- a/src/server/routes/api/updateCenter.test.ts
+++ b/src/server/routes/api/updateCenter.test.ts
@@ -32,11 +32,13 @@ vi.mock('../../services/updateCenterHelperClient.js', () => ({
 }));
 
 type DbModule = typeof import('../../db/index.js');
+type ConfigModule = typeof import('../../config.js');
 
 describe('update center routes', () => {
   let app: FastifyInstance;
   let db: DbModule['db'];
   let schema: DbModule['schema'];
+  let appConfig: ConfigModule['config'];
   let dataDir = '';
   let resetBackgroundTasks: (() => void) | null = null;
   let getBackgroundTask: ((taskId: string) => { status: string; logs?: Array<{ message: string }> } | null) | null = null;
@@ -67,10 +69,12 @@ describe('update center routes', () => {
     process.env.DEPLOY_HELPER_TOKEN = 'helper-token';
 
     await import('../../db/migrate.js');
+    const configModule = await import('../../config.js');
     const dbModule = await import('../../db/index.js');
     const routesModule = await import('./updateCenter.js');
     const backgroundTaskModule = await import('../../services/backgroundTaskService.js');
 
+    appConfig = configModule.config;
     db = dbModule.db;
     schema = dbModule.schema;
     resetBackgroundTasks = backgroundTaskModule.__resetBackgroundTasksForTests;
@@ -208,6 +212,54 @@ describe('update center routes', () => {
     });
   });
 
+  it('uses the shared config helper token when request-time env lookup is unavailable', async () => {
+    fetchLatestStableGitHubReleaseMock.mockResolvedValue({
+      source: 'github-release',
+      rawVersion: 'v1.3.0',
+      normalizedVersion: '1.3.0',
+      url: 'https://github.com/cita-777/metapi/releases/tag/v1.3.0',
+    });
+    getUpdateCenterHelperStatusMock.mockResolvedValue({
+      ok: true,
+      releaseName: 'metapi',
+      namespace: 'ai',
+      revision: '12',
+      imageRepository: '1467078763/metapi',
+      imageTag: '1.2.3',
+      healthy: true,
+    });
+
+    await saveValidConfig();
+
+    const originalEnvToken = process.env.DEPLOY_HELPER_TOKEN;
+    delete process.env.DEPLOY_HELPER_TOKEN;
+    (appConfig as typeof appConfig & { deployHelperToken?: string }).deployHelperToken = 'helper-token';
+
+    try {
+      const statusResponse = await app.inject({
+        method: 'GET',
+        url: '/api/update-center/status',
+      });
+
+      expect(statusResponse.statusCode).toBe(200);
+      expect(getUpdateCenterHelperStatusMock).toHaveBeenCalledWith(
+        expect.objectContaining({
+          helperBaseUrl: 'http://metapi-deploy-helper.ai.svc.cluster.local:9850',
+        }),
+        'helper-token',
+      );
+      expect(statusResponse.json()).toMatchObject({
+        helper: {
+          ok: true,
+          healthy: true,
+        },
+      });
+    } finally {
+      process.env.DEPLOY_HELPER_TOKEN = originalEnvToken;
+      delete (appConfig as typeof appConfig & { deployHelperToken?: string }).deployHelperToken;
+    }
+  });
+
   it('dedupes deploy requests while a task is already running', async () => {
     await saveValidConfig();
 
diff --git a/src/server/routes/api/updateCenter.ts b/src/server/routes/api/updateCenter.ts
index 55230a2..8104e5e 100644
--- a/src/server/routes/api/updateCenter.ts
+++ b/src/server/routes/api/updateCenter.ts
@@ -1,4 +1,5 @@
 import { FastifyInstance } from 'fastify';
+import { config as runtimeConfig } from '../../config.js';
 
 import {
   appendBackgroundTaskLog,
@@ -35,7 +36,12 @@ const UPDATE_CENTER_DEPLOY_TASK_TYPE = 'update-center.deploy';
 const UPDATE_CENTER_DEPLOY_DEDUPE_KEY = 'update-center.deploy';
 
 function getUpdateCenterHelperToken(): string {
-  return String(process.env.DEPLOY_HELPER_TOKEN || process.env.UPDATE_CENTER_HELPER_TOKEN || '').trim();
+  return String(
+    runtimeConfig.deployHelperToken
+    || process.env.DEPLOY_HELPER_TOKEN
+    || process.env.UPDATE_CENTER_HELPER_TOKEN
+    || '',
+  ).trim();
 }
 
 function assertDeployableConfig(config: UpdateCenterConfig) {