diff --git a/.env.example b/.env.example
index 0e604be..131d25e 100644
--- a/.env.example
+++ b/.env.example
@@ -2,6 +2,10 @@
 PORT=5174
 # 可选，默认为 ./data/assistant.db
 # DATABASE_PATH=./data/assistant.db
+# 可选，默认 info，可选值：debug/info/warn/error
+# 开发环境建议：LOG_LEVEL=info
+# 生产环境建议：LOG_LEVEL=error
+# LOG_LEVEL=info
 # 必填，运行 openssl rand -hex 32 生成
 ENCRYPTION_KEY=
 
diff --git a/docker-compose.yml b/docker-compose.yml
index 00e4d8a..0ba7067 100644
--- a/docker-compose.yml
+++ b/docker-compose.yml
@@ -13,6 +13,8 @@ services:
       - assistant_data:/app/data
     env_file:
       - .env
+    environment:
+      LOG_LEVEL: error
     depends_on:
       qdrant:
         condition: service_healthy
diff --git a/k8s/gitea-assistant.yaml b/k8s/gitea-assistant.yaml
index 8040874..a15ff9a 100644
--- a/k8s/gitea-assistant.yaml
+++ b/k8s/gitea-assistant.yaml
@@ -10,6 +10,7 @@ metadata:
     app.kubernetes.io/part-of: gitea-assistant
 data:
   PORT: "5174"
+  LOG_LEVEL: "error"
   # All settings (Gitea connection, webhook secret, admin password, review engine,
   # Feishu, memory, etc.) are managed through the Admin Dashboard Web UI.
   # They are auto-seeded with secure defaults on first boot.