diff --git a/install.sh b/install.sh
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--- /dev/null
+++ b/install.sh
@@ -0,0 +1,96 @@
+#!/bin/bash
+#
+# meshgo 安装脚本（Linux）
+# 功能：git pull 拉取最新代码 → 编译 → 安装到 /opt/meshgo
+#
+
+set -e
+
+APP_NAME="meshgo"
+INSTALL_DIR="/opt/${APP_NAME}"
+DATA_DIR="/var/lib/${APP_NAME}"
+REPO_DIR="$(cd "$(dirname "$0")" && pwd)"
+
+echo "=== meshgo 安装脚本 ==="
+echo "安装目录: ${INSTALL_DIR}"
+echo "仓库目录: ${REPO_DIR}"
+echo ""
+
+# ---------------------------------------------------------------------------
+# 1. git pull 拉取最新代码
+# ---------------------------------------------------------------------------
+echo "[1/5] 拉取最新代码..."
+cd "${REPO_DIR}"
+if ! git diff-index --quiet HEAD -- 2>/dev/null; then
+    echo "警告：本地有未提交的更改，将暂存后拉取..."
+    git stash push -m "install.sh auto stash $(date +%Y%m%d%H%M%S)"
+fi
+git pull origin main
+echo "[1/5] 完成"
+echo ""
+
+# ---------------------------------------------------------------------------
+# 2. 编译
+# ---------------------------------------------------------------------------
+echo "[2/5] 编译..."
+CGO_ENABLED=1 go build -ldflags="-s -w" -o meshgo .
+echo "[2/5] 完成: meshgo"
+echo ""
+
+# ---------------------------------------------------------------------------
+# 3. 创建用户和数据目录
+# ---------------------------------------------------------------------------
+echo "[3/5] 创建用户和数据目录..."
+id -u ${APP_NAME} &>/dev/null || sudo useradd -r -s /usr/sbin/nologin -d /nonexistent ${APP_NAME}
+sudo mkdir -p "${INSTALL_DIR}"
+sudo mkdir -p "${DATA_DIR}"
+echo "[3/5] 完成"
+echo ""
+
+# ---------------------------------------------------------------------------
+# 4. 复制到安装目录并设置权限
+# ---------------------------------------------------------------------------
+echo "[4/5] 复制到 ${INSTALL_DIR}..."
+sudo cp meshgo "${INSTALL_DIR}/"
+sudo chown -R ${APP_NAME}:${APP_NAME} "${INSTALL_DIR}"
+sudo chown -R ${APP_NAME}:${APP_NAME} "${DATA_DIR}"
+echo "[4/5] 完成"
+echo ""
+
+# ---------------------------------------------------------------------------
+# 5. 安装 systemd 服务
+# ---------------------------------------------------------------------------
+echo "[5/5] 安装 systemd 服务..."
+sudo tee /etc/systemd/system/${APP_NAME}.service > /dev/null <<EOF
+[Unit]
+Description=meshgo MQTT Broker
+Documentation=https://github.com/mochi-mqtt/server
+After=network.target
+
+[Service]
+Type=simple
+User=${APP_NAME}
+Group=${APP_NAME}
+ExecStart=${INSTALL_DIR}/meshgo
+ExecReload=/bin/kill -HUP \$MAINPID
+Restart=on-failure
+RestartSec=5s
+StandardOutput=journal
+StandardError=journal
+SyslogIdentifier=${APP_NAME}
+ReadWritePaths=${DATA_DIR}
+PrivateTmp=true
+NoNewPrivileges=true
+
+[Install]
+WantedBy=multi-user.target
+EOF
+sudo systemctl daemon-reload
+echo "[5/5] 完成"
+echo ""
+
+echo "=== 安装完成 ==="
+echo ""
+echo "配置文件（程序首次运行自动生成）：/etc/meshgo/config.yaml"
+echo "二进制文件：${INSTALL_DIR}/meshgo"
+echo ""