diff --git a/src/modules/qqbot/napcat/infrastructure/integration/container/qqbot-napcat-container.service.ts b/src/modules/qqbot/napcat/infrastructure/integration/container/qqbot-napcat-container.service.ts
index 67db6c9..87d14d0 100644
--- a/src/modules/qqbot/napcat/infrastructure/integration/container/qqbot-napcat-container.service.ts
+++ b/src/modules/qqbot/napcat/infrastructure/integration/container/qqbot-napcat-container.service.ts
@@ -49,12 +49,29 @@ type CreateManagedContainerOptions = {
   startRemote?: boolean;
 };
 
+type NapcatWebuiCredentialCacheEntry = {
+  credential: string;
+  expiresAt: number;
+};
+
+const NAPCAT_WEBUI_CREDENTIAL_TTL_MS = 50 * 60 * 1000;
+
 @Injectable()
 export class QqbotNapcatContainerService {
   private readonly configWriterService: NapcatConfigWriterService;
 
   private readonly runtimeProfileService: NapcatRuntimeProfileService;
 
+  private readonly webuiCredentials: Record<
+    string,
+    NapcatWebuiCredentialCacheEntry | undefined
+  > = {};
+
+  private readonly webuiCredentialRequests: Record<
+    string,
+    Promise<string> | undefined
+  > = {};
+
   /**
    * 初始化 QqbotNapcatContainerService 实例。
    * @param configService - Runtime configuration source for NAS SSH, Docker image, port pool, and profile defaults.
@@ -894,13 +911,7 @@ docker inspect --format '{{range .Config.Env}}{{println .}}{{end}}' "$NAME"
 
     try {
       const runtime = this.toRuntime(container);
-      const credential = await this.getNapcatCredential(runtime);
-      const status = await this.requestNapcat<NapcatLoginStatus>(
-        runtime,
-        '/api/QQLogin/CheckLoginStatus',
-        {},
-        credential,
-      );
+      const status = await this.requestNapcatLoginStatus(runtime);
       const snapshot = this.toRuntimeStatusSnapshot(
         status,
         containerOnline,
@@ -1693,9 +1704,40 @@ ${file.content}EOF`;
 
   /**
    * 查询 NapCat 登录运行态数据。
-   * @param runtime - runtime 输入；使用 `webuiToken` 字段生成结果。
+   * @param runtime - NapCat runtime；使用容器身份、WebUI 地址和 token 边界复用短期 Credential。
+   * @returns 可用于 NapCat WebUI Bearer 鉴权的 Credential。
    */
   private async getNapcatCredential(runtime: QqbotNapcatRuntime) {
+    const cacheKey = this.getNapcatCredentialCacheKey(runtime);
+    const cached = this.webuiCredentials[cacheKey];
+    if (cached && Date.now() < cached.expiresAt) {
+      return cached.credential;
+    }
+
+    const pending = this.webuiCredentialRequests[cacheKey];
+    if (pending) {
+      return pending;
+    }
+
+    const request = this.fetchNapcatCredential(runtime, cacheKey);
+    this.webuiCredentialRequests[cacheKey] = request;
+    try {
+      return await request;
+    } finally {
+      delete this.webuiCredentialRequests[cacheKey];
+    }
+  }
+
+  /**
+   * 从 NapCat WebUI 换取并缓存新的 Bearer Credential。
+   * @param runtime - NapCat runtime；提供 WebUI 地址和 token 以调用 `/api/auth/login`。
+   * @param cacheKey - 已由调用方按容器身份和 token 生成的缓存键，用于落入同一 single-flight 槽位。
+   * @returns 可用于后续 NapCat WebUI 请求的 Credential。
+   */
+  private async fetchNapcatCredential(
+    runtime: QqbotNapcatRuntime,
+    cacheKey: string,
+  ) {
     const token = runtime.webuiToken || '';
     const hash = createHash('sha256').update(`${token}.napcat`).digest('hex');
     const data = await this.requestNapcat<NapcatCredential>(
@@ -1706,9 +1748,78 @@ ${file.content}EOF`;
     if (!data.Credential) {
       throwVbenError('NapCat WebUI 登录失败');
     }
+    this.webuiCredentials[cacheKey] = {
+      credential: data.Credential,
+      expiresAt: Date.now() + NAPCAT_WEBUI_CREDENTIAL_TTL_MS,
+    };
     return data.Credential;
   }
 
+  /**
+   * 请求 NapCat QQ 登录状态，并在 WebUI Credential 失效时刷新一次。
+   * @param runtime - NapCat runtime；提供 WebUI 地址、token 和容器身份以完成鉴权与状态读取。
+   * @returns NapCat WebUI 返回的 QQ 登录状态。
+   */
+  private async requestNapcatLoginStatus(runtime: QqbotNapcatRuntime) {
+    const credential = await this.getNapcatCredential(runtime);
+    try {
+      return await this.requestNapcat<NapcatLoginStatus>(
+        runtime,
+        '/api/QQLogin/CheckLoginStatus',
+        {},
+        credential,
+      );
+    } catch (err) {
+      if (!this.isNapcatCredentialRejected(err)) {
+        throw err;
+      }
+      this.clearNapcatCredential(runtime, credential);
+      const refreshedCredential = await this.getNapcatCredential(runtime);
+      return this.requestNapcat<NapcatLoginStatus>(
+        runtime,
+        '/api/QQLogin/CheckLoginStatus',
+        {},
+        refreshedCredential,
+      );
+    }
+  }
+
+  /**
+   * 清理当前容器的 NapCat WebUI Credential 缓存。
+   * @param runtime - NapCat runtime；`id/baseUrl/token` 决定需要失效的进程内缓存条目。
+   * @param rejectedCredential - NapCat 刚拒绝的 Credential；有值时只清理仍等于它的缓存，避免旧请求删除已刷新的新缓存。
+   */
+  private clearNapcatCredential(
+    runtime: QqbotNapcatRuntime,
+    rejectedCredential?: string,
+  ) {
+    const cacheKey = this.getNapcatCredentialCacheKey(runtime);
+    const cached = this.webuiCredentials[cacheKey];
+    if (rejectedCredential && cached?.credential !== rejectedCredential) {
+      return;
+    }
+    delete this.webuiCredentials[cacheKey];
+  }
+
+  /**
+   * 判断 NapCat WebUI 是否拒绝了当前 Credential。
+   * @param err - NapCat 请求异常；来源可能是 WebUI `Unauthorized` 或旧 token 失效提示。
+   * @returns 为 true 时调用方可安全刷新一次 Credential 后重试状态请求。
+   */
+  private isNapcatCredentialRejected(err: unknown) {
+    const message = this.toolsService.getErrorMessage(err);
+    return /Unauthorized|token is invalid/i.test(message);
+  }
+
+  /**
+   * 生成 NapCat WebUI Credential 缓存键。
+   * @param runtime - NapCat runtime；`id/baseUrl` 定位容器实例，`webuiToken` 区分重建或换密钥后的鉴权边界。
+   * @returns 当前 API 进程内 credential 缓存使用的稳定键。
+   */
+  private getNapcatCredentialCacheKey(runtime: QqbotNapcatRuntime) {
+    return [runtime.id || runtime.baseUrl, runtime.webuiToken || ''].join('\n');
+  }
+
   /**
    * 执行 NapCat 登录运行态流程。
    * @param status - NapCat列表；使用 `loginError` 字段生成结果。
diff --git a/test/qqbot/napcat/qqbot-napcat-container-runtime-status.spec.ts b/test/qqbot/napcat/qqbot-napcat-container-runtime-status.spec.ts
index c82a9c6..64742d1 100644
--- a/test/qqbot/napcat/qqbot-napcat-container-runtime-status.spec.ts
+++ b/test/qqbot/napcat/qqbot-napcat-container-runtime-status.spec.ts
@@ -82,4 +82,240 @@ describe('QqbotNapcatContainerService runtime status', () => {
       }),
     );
   });
+
+  it('reuses WebUI credential when checking the same running container repeatedly', async () => {
+    const repository = {
+      update: jest.fn(),
+    };
+    const service = createService(repository);
+    const requestNapcat = jest
+      .spyOn(service as any, 'requestNapcat')
+      .mockImplementation(async (_runtime, path: string) => {
+        if (path === '/api/auth/login') {
+          return { Credential: 'credential-1' };
+        }
+        if (path === '/api/QQLogin/CheckLoginStatus') {
+          return {
+            isLogin: true,
+            isOffline: false,
+            loginError: '',
+            online: true,
+            qrcodeurl: '',
+          };
+        }
+        throw new Error(`unexpected path ${path}`);
+      });
+
+    const container = {
+      baseUrl: 'http://127.0.0.1:6100/',
+      id: 'container-1',
+      lastError: null,
+      name: 'napcat-1',
+      status: 'running',
+      webuiPort: 6100,
+      webuiToken: 'token',
+    } as any;
+
+    await service.inspectRuntimeStatus(container);
+    await service.inspectRuntimeStatus(container);
+
+    expect(
+      requestNapcat.mock.calls.filter(
+        ([, path]: unknown[]) => path === '/api/auth/login',
+      ),
+    ).toHaveLength(1);
+    expect(
+      requestNapcat.mock.calls.filter(
+        ([, path]: unknown[]) => path === '/api/QQLogin/CheckLoginStatus',
+      ),
+    ).toHaveLength(2);
+  });
+
+  it('deduplicates concurrent WebUI credential requests for the same container', async () => {
+    const repository = {
+      update: jest.fn(),
+    };
+    const service = createService(repository);
+    const requestNapcat = jest
+      .spyOn(service as any, 'requestNapcat')
+      .mockImplementation(async (_runtime, path: string) => {
+        if (path === '/api/auth/login') {
+          await new Promise((resolve) => setTimeout(resolve, 1));
+          return { Credential: 'credential-1' };
+        }
+        if (path === '/api/QQLogin/CheckLoginStatus') {
+          return {
+            isLogin: true,
+            isOffline: false,
+            loginError: '',
+            online: true,
+            qrcodeurl: '',
+          };
+        }
+        throw new Error(`unexpected path ${path}`);
+      });
+
+    const container = {
+      baseUrl: 'http://127.0.0.1:6100/',
+      id: 'container-1',
+      lastError: null,
+      name: 'napcat-1',
+      status: 'running',
+      webuiPort: 6100,
+      webuiToken: 'token',
+    } as any;
+
+    await Promise.all([
+      service.inspectRuntimeStatus(container),
+      service.inspectRuntimeStatus(container),
+    ]);
+
+    expect(
+      requestNapcat.mock.calls.filter(
+        ([, path]: unknown[]) => path === '/api/auth/login',
+      ),
+    ).toHaveLength(1);
+    expect(
+      requestNapcat.mock.calls.filter(
+        ([, path]: unknown[]) => path === '/api/QQLogin/CheckLoginStatus',
+      ),
+    ).toHaveLength(2);
+  });
+
+  it('refreshes cached WebUI credential once when NapCat rejects status auth', async () => {
+    const repository = {
+      update: jest.fn(),
+    };
+    const service = createService(repository);
+    let credentialIndex = 0;
+    let statusChecks = 0;
+    const requestNapcat = jest
+      .spyOn(service as any, 'requestNapcat')
+      .mockImplementation(
+        async (_runtime, path: string, _body, credential?: string) => {
+          if (path === '/api/auth/login') {
+            credentialIndex += 1;
+            return { Credential: `credential-${credentialIndex}` };
+          }
+          if (path === '/api/QQLogin/CheckLoginStatus') {
+            statusChecks += 1;
+            if (statusChecks > 1 && credential === 'credential-1') {
+              throw new Error('Unauthorized');
+            }
+            return {
+              isLogin: true,
+              isOffline: false,
+              loginError: '',
+              online: true,
+              qrcodeurl: '',
+            };
+          }
+          throw new Error(`unexpected path ${path}`);
+        },
+      );
+
+    const container = {
+      baseUrl: 'http://127.0.0.1:6100/',
+      id: 'container-1',
+      lastError: null,
+      name: 'napcat-1',
+      status: 'running',
+      webuiPort: 6100,
+      webuiToken: 'token',
+    } as any;
+
+    await service.inspectRuntimeStatus(container);
+    const snapshot = await service.inspectRuntimeStatus(container);
+
+    expect(snapshot).toEqual(
+      expect.objectContaining({
+        qqLoginStatus: 'online',
+        webuiOnline: true,
+      }),
+    );
+    expect(
+      requestNapcat.mock.calls.filter(
+        ([, path]: unknown[]) => path === '/api/auth/login',
+      ),
+    ).toHaveLength(2);
+    expect(
+      requestNapcat.mock.calls.filter(
+        ([, path]: unknown[]) => path === '/api/QQLogin/CheckLoginStatus',
+      ),
+    ).toHaveLength(3);
+  });
+
+  it('keeps a refreshed credential when a later stale status request is rejected', async () => {
+    const repository = {
+      update: jest.fn(),
+    };
+    const service = createService(repository);
+    let credentialIndex = 0;
+    let staleMode = false;
+    let staleStatusChecks = 0;
+    let releaseSecondStaleReject: (() => void) | undefined;
+    const secondStaleReject = new Promise<void>((resolve) => {
+      releaseSecondStaleReject = resolve;
+    });
+    const requestNapcat = jest
+      .spyOn(service as any, 'requestNapcat')
+      .mockImplementation(
+        async (_runtime, path: string, _body, credential?: string) => {
+          if (path === '/api/auth/login') {
+            credentialIndex += 1;
+            return {
+              Credential:
+                credentialIndex === 1
+                  ? 'credential-old'
+                  : 'credential-new',
+            };
+          }
+          if (path === '/api/QQLogin/CheckLoginStatus') {
+            if (staleMode && credential === 'credential-old') {
+              staleStatusChecks += 1;
+              if (staleStatusChecks === 1) {
+                throw new Error('Unauthorized');
+              }
+              await secondStaleReject;
+              throw new Error('Unauthorized');
+            }
+            if (staleMode && credential === 'credential-new') {
+              releaseSecondStaleReject?.();
+            }
+            return {
+              isLogin: true,
+              isOffline: false,
+              loginError: '',
+              online: true,
+              qrcodeurl: '',
+            };
+          }
+          throw new Error(`unexpected path ${path}`);
+        },
+      );
+
+    const container = {
+      baseUrl: 'http://127.0.0.1:6100/',
+      id: 'container-1',
+      lastError: null,
+      name: 'napcat-1',
+      status: 'running',
+      webuiPort: 6100,
+      webuiToken: 'token',
+    } as any;
+
+    await service.inspectRuntimeStatus(container);
+    staleMode = true;
+
+    await Promise.all([
+      service.inspectRuntimeStatus(container),
+      service.inspectRuntimeStatus(container),
+    ]);
+
+    expect(
+      requestNapcat.mock.calls.filter(
+        ([, path]: unknown[]) => path === '/api/auth/login',
+      ),
+    ).toHaveLength(2);
+  });
 });