diff --git a/docker-compose.dev.yml b/docker-compose.dev.yml
index 8b040cb..b8360ea 100644
--- a/docker-compose.dev.yml
+++ b/docker-compose.dev.yml
@@ -122,6 +122,9 @@ services:
       DB_NAME: flower
       DB_USER: postgres
       DB_PASSWORD: postgres
+      # 缓存（Redis）连接：容器内用服务名访问
+      CACHE_HOST: redis
+      CACHE_PORT: "6379"
       # Celery 连接配置：容器内用服务名访问
       CELERY_BROKER_HOST: rabbitmq
       CELERY_RESULT_HOST: redis
@@ -156,6 +159,9 @@ services:
       DB_NAME: flower
       DB_USER: postgres
       DB_PASSWORD: postgres
+      # 缓存（Redis）连接：容器内用服务名访问
+      CACHE_HOST: redis
+      CACHE_PORT: "6379"
       # Celery 连接配置：容器内用服务名访问
       CELERY_BROKER_HOST: rabbitmq
       CELERY_RESULT_HOST: redis
diff --git a/docker-compose.prod.yml b/docker-compose.prod.yml
index a99537a..af8b535 100644
--- a/docker-compose.prod.yml
+++ b/docker-compose.prod.yml
@@ -104,6 +104,9 @@ services:
       DB_NAME: "${DB_NAME:-flower}"
       DB_USER: "${DB_USER:-postgres}"
       DB_PASSWORD: "${DB_PASSWORD:-postgres}"
+      # 缓存（Redis）连接：容器内用服务名访问
+      CACHE_HOST: ${CACHE_HOST:-redis}
+      CACHE_PORT: "${CACHE_PORT:-6379}"
       # Celery 连接配置：容器内用服务名访问
       CELERY_BROKER_HOST: ${CELERY_BROKER_HOST:-rabbitmq}
       CELERY_BROKER_PORT: "${CELERY_BROKER_PORT:-5672}"
@@ -143,6 +146,9 @@ services:
       DB_NAME: "${DB_NAME:-flower}"
       DB_USER: "${DB_USER:-postgres}"
       DB_PASSWORD: "${DB_PASSWORD:-postgres}"
+      # 缓存（Redis）连接：容器内用服务名访问
+      CACHE_HOST: ${CACHE_HOST:-redis}
+      CACHE_PORT: "${CACHE_PORT:-6379}"
       # Celery 连接配置：容器内用服务名访问
       CELERY_BROKER_HOST: ${CELERY_BROKER_HOST:-rabbitmq}
       CELERY_BROKER_PORT: "${CELERY_BROKER_PORT:-5672}"
diff --git a/docker-compose.yml b/docker-compose.yml
index a69cb57..1f9c52e 100644
--- a/docker-compose.yml
+++ b/docker-compose.yml
@@ -126,6 +126,9 @@ services:
       DB_NAME: flower
       DB_USER: postgres
       DB_PASSWORD: postgres
+      # 缓存（Redis）连接：容器内用服务名访问
+      CACHE_HOST: redis
+      CACHE_PORT: "6379"
       # Celery 连接配置：容器内用服务名访问
       CELERY_BROKER_HOST: rabbitmq
       CELERY_RESULT_HOST: redis
@@ -158,6 +161,9 @@ services:
       DB_NAME: flower
       DB_USER: postgres
       DB_PASSWORD: postgres
+      # 缓存（Redis）连接：容器内用服务名访问
+      CACHE_HOST: redis
+      CACHE_PORT: "6379"
       # Celery 连接配置：容器内用服务名访问
       CELERY_BROKER_HOST: rabbitmq
       CELERY_RESULT_HOST: redis
diff --git a/docs/2026-01-11_summary.md b/docs/2026-01-11_summary.md
index 6113633..a7b07f6 100644
--- a/docs/2026-01-11_summary.md
+++ b/docs/2026-01-11_summary.md
@@ -94,7 +94,18 @@ MIDDLEWARE = [
 
 原因：`Product` 模型没有设置 `unique_together = ('merchant', 'human_id')` 约束，多同步源可能导致重复数据，`get_or_create` 会抛出 `MultipleObjectsReturned` 错误。
 
+### 9. 修复 Docker Compose 中 Celery 服务缺少 CACHE_HOST 配置
+
+在以下文件中为 `celery_worker` 和 `celery_beat` 服务添加 `CACHE_HOST` 和 `CACHE_PORT` 环境变量：
+
+- `docker-compose.yml`
+- `docker-compose.dev.yml`
+- `docker-compose.prod.yml`
+
+问题原因：`settings.py` 中 `CACHE_HOST` 默认值为 `localhost`，在容器化环境中无法连接到 Redis 服务。
+
 ## 待办事项
 
 - [ ] 执行数据库迁移 (`uv run python manage.py migrate`)
 - [ ] 测试中间件功能
+- [ ] 重启 Docker 容器使配置生效
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