diff --git a/deploy/dev-deploy/.env.dev b/deploy/dev-deploy/.env.dev
index 5dcf59d..3511f27 100644
--- a/deploy/dev-deploy/.env.dev
+++ b/deploy/dev-deploy/.env.dev
@@ -33,7 +33,7 @@ CELERY_BROKER_URL=redis://redis:6379/0
 CELERY_RESULT_BACKEND=redis://redis:6379/1
 CELERY_TIMEZONE=Asia/Shanghai
 SCHEDULER_EXPIRE_INTERVAL_SECONDS=60
-FLOWER_API_BASE_URL=http://flower:5556
+FLOWER_API_BASE_URL=http://flower:5555
 FLOWER_API_TIMEOUT_SECONDS=10
 FLOWER_BASIC_AUTH=admin:admin
 WORKER_REGISTRY_TTL_SECONDS=90
diff --git a/deploy/dev-deploy/compose.yml b/deploy/dev-deploy/compose.yml
index 655081b..881f329 100644
--- a/deploy/dev-deploy/compose.yml
+++ b/deploy/dev-deploy/compose.yml
@@ -177,7 +177,7 @@ services:
       CELERY_BROKER_URL: redis://redis:6379/0
       CELERY_RESULT_BACKEND: redis://redis:6379/1
       CELERY_TIMEZONE: ${CELERY_TIMEZONE}
-      FLOWER_BASIC_AUTH: ${FLOWER_BASIC_AUTH}
+      FLOWER_BASIC_AUTH: ${FLOWER_BASIC_AUTH:-admin:admin}
     ports:
       - "${FLOWER_PORT}:5555"
     restart: unless-stopped
diff --git a/deploy/pro-deploy/compose.yml b/deploy/pro-deploy/compose.yml
index 137f640..069ac33 100644
--- a/deploy/pro-deploy/compose.yml
+++ b/deploy/pro-deploy/compose.yml
@@ -149,7 +149,7 @@ services:
       CELERY_BROKER_URL: redis://redis:6379/0
       CELERY_RESULT_BACKEND: redis://redis:6379/1
       CELERY_TIMEZONE: ${CELERY_TIMEZONE}
-      FLOWER_BASIC_AUTH: ${FLOWER_BASIC_AUTH}
+      FLOWER_BASIC_AUTH: ${FLOWER_BASIC_AUTH:-admin:change_me}
     ports:
       - "${FLOWER_PORT}:5555"
     restart: unless-stopped
diff --git a/memory/2026-05-02.md b/memory/2026-05-02.md
index 834ad48..5872549 100644
--- a/memory/2026-05-02.md
+++ b/memory/2026-05-02.md
@@ -282,3 +282,29 @@
 
 - 风险与影响：
   - 影响范围仅前端角色管理页面展示层；接口契约与数据结构无变更。
+
+## Work Log - 修复 Worker 监控 Flower 401（2026-05-02）
+
+- 背景：
+  - Issue `FL-171` 报告 “worker 监控页面 401（flower error 401: Unauthorized）”。
+
+- 根因：
+  - `deploy/dev-deploy/.env.dev` 中 `FLOWER_API_BASE_URL` 误配为 `http://flower:5556`，与 `flower` 容器实际监听端口 `5555` 不一致。
+  - `deploy/*/compose.yml` 的 `flower` 服务环境变量 `FLOWER_BASIC_AUTH` 未设置默认值，若运行时未注入该变量，容器内可能读取为空，导致 API 侧按旧凭据访问时出现 401。
+
+- 本次改动（最小闭环）：
+  - 文件：`deploy/dev-deploy/.env.dev`
+    - `FLOWER_API_BASE_URL` 从 `http://flower:5556` 修正为 `http://flower:5555`。
+  - 文件：`deploy/dev-deploy/compose.yml`
+    - `flower.environment.FLOWER_BASIC_AUTH` 调整为 `${FLOWER_BASIC_AUTH:-admin:admin}`，与命令参数默认值一致。
+  - 文件：`deploy/pro-deploy/compose.yml`
+    - `flower.environment.FLOWER_BASIC_AUTH` 调整为 `${FLOWER_BASIC_AUTH:-admin:change_me}`，避免环境变量缺失时鉴权源不一致。
+
+- 验证：
+  - 配置一致性检查：
+    - `FLOWER_API_BASE_URL`（dev/pro/env.example）全部指向容器内 `http://flower:5555`。
+    - `flower` 服务命令参数与容器环境变量 `FLOWER_BASIC_AUTH` 已对齐默认回退策略。
+
+- 风险与影响：
+  - 影响面仅部署配置与环境模板，不涉及业务代码逻辑。
+  - 若生产实际使用了外部注入的 `FLOWER_BASIC_AUTH`，该值仍会覆盖默认值，不改变既有安全策略。