diff --git a/deploy/update.sh b/deploy/update.sh
new file mode 100644
index 0000000..ecb695d
--- /dev/null
+++ b/deploy/update.sh
@@ -0,0 +1,28 @@
+#!/usr/bin/env bash
+# vps-manager 自动更新脚本（由 systemd timer 定时触发）
+# 从 Gitea 拉取最新代码，如有更新则重启服务
+# 部署位置：/opt/vps-manager/deploy/update.sh
+
+set -euo pipefail
+
+cd /opt/vps-manager
+
+git fetch -q origin main
+
+LOCAL=$(git rev-parse HEAD)
+REMOTE=$(git rev-parse origin/main)
+
+if [ "$LOCAL" = "$REMOTE" ]; then
+  echo "[$(date '+%F %T')] 代码已是最新，无需更新"
+  exit 0
+fi
+
+echo "[$(date '+%F %T')] 检测到新版本: ${LOCAL:0:8} -> ${REMOTE:0:8}"
+git pull --ff-only -q origin main
+
+# 依赖如有变更自动安装（无变化时 pip 会快速跳过）
+.venv/bin/pip install -q -r requirements.txt 2>/dev/null || true
+
+# 重启服务加载新代码
+systemctl restart vps-manager
+echo "[$(date '+%F %T')] 已重启 vps-manager 服务"