diff --git a/install.sh b/install.sh
index 4b0c19d..5db328c 100755
--- a/install.sh
+++ b/install.sh
@@ -3,6 +3,7 @@
 # 用法: sudo ./install.sh
 #
 # 将程序安装到 /opt/apps/padsleep，创建命令行软链接。
+# 自动创建 Python 虚拟环境并安装依赖。
 # 代码中 SCRIPT_DIR 使用 Path(__file__).resolve().parent，
 # 会自动适配安装路径，无需修改代码。
 
@@ -11,6 +12,8 @@ set -e
 INSTALL_DIR="/opt/apps/padsleep"
 BIN_DIR="/usr/local/bin"
 SERVICE_DIR="/etc/systemd/system"
+VENV_DIR="$INSTALL_DIR/.venv"
+PYTHON_BIN="$VENV_DIR/bin/python3"
 
 # 颜色
 RED='\033[0;31m'
@@ -40,7 +43,6 @@ fi
 # ── 确定运行用户（sudo 的原用户）──
 RUN_USER="${SUDO_USER:-}"
 if [ -z "$RUN_USER" ]; then
-    # fallback: 从服务文件提取 User= 字段
     if [ -f "$SRC_DIR/padsleep.service" ]; then
         RUN_USER=$(grep '^User=' "$SRC_DIR/padsleep.service" | head -1 | cut -d= -f2)
     fi
@@ -75,6 +77,25 @@ fi
 touch "$INSTALL_DIR/padsleep.log"
 chmod 644 "$INSTALL_DIR/padsleep.log"
 
+# ── 创建 Python 虚拟环境 ──
+if [ ! -d "$VENV_DIR" ]; then
+    info "正在创建 Python 虚拟环境..."
+    python3 -m venv "$VENV_DIR"
+    info "虚拟环境已创建: $VENV_DIR"
+else
+    info "虚拟环境已存在，跳过创建"
+fi
+
+# ── 安装 Python 依赖 ──
+info "正在安装 Python 依赖..."
+"$VENV_DIR/bin/pip" install --quiet adbutils 2>&1 || {
+    warn "pip 安装失败，尝试离线安装..."
+    if [ -f "$SRC_DIR/.venv" ]; then
+        cp -r "$SRC_DIR/.venv" "$VENV_DIR"
+    fi
+}
+info "Python 依赖安装完成"
+
 # 设置执行权限
 chmod 755 "$INSTALL_DIR/padsleep.py"
 chmod 755 "$INSTALL_DIR/padsleep_tui.py"
@@ -85,19 +106,28 @@ chmod 755 "$INSTALL_DIR"
 chmod 644 "$INSTALL_DIR/padsleep.log" 2>/dev/null
 info "文件所有权已设置为 $RUN_USER"
 
-# ── 创建软链接 ──
-ln -sf "$INSTALL_DIR/padsleep.py" "$BIN_DIR/padsleep"
-ln -sf "$INSTALL_DIR/padsleep_tui.py" "$BIN_DIR/padsleep-config"
-info "已创建命令软链接:"
-info "  $BIN_DIR/padsleep       → 启动守护进程"
-info "  $BIN_DIR/padsleep-config → 启动 TUI 配置工具"
+# ── 创建命令包装脚本（使用 venv Python）──
+create_wrapper() {
+    local script="$1"  # padsleep.py 或 padsleep_tui.py
+    local link="$2"    # /usr/local/bin/padsleep
+    cat > "$link" <<WRAPPER
+#!/bin/bash
+exec "$PYTHON_BIN" "$INSTALL_DIR/$script" "\$@"
+WRAPPER
+    chmod 755 "$link"
+}
+
+create_wrapper "padsleep.py" "$BIN_DIR/padsleep"
+create_wrapper "padsleep_tui.py" "$BIN_DIR/padsleep-config"
+info "已创建命令入口:"
+info "  $BIN_DIR/padsleep       → 启动守护进程 ($PYTHON_BIN)"
+info "  $BIN_DIR/padsleep-config → 启动 TUI 配置工具 ($PYTHON_BIN)"
 
 # ── 可选：复制 systemd 服务 ──
 if [ -f "$SRC_DIR/padsleep.service" ]; then
-    # 复制并更新服务文件中的路径和用户
     cp "$SRC_DIR/padsleep.service" "$SERVICE_DIR/padsleep.service"
     sed -i "s|WorkingDirectory=.*|WorkingDirectory=$INSTALL_DIR|" "$SERVICE_DIR/padsleep.service"
-    sed -i "s|ExecStart=.*|ExecStart=/usr/bin/python3 $INSTALL_DIR/padsleep.py|" "$SERVICE_DIR/padsleep.service"
+    sed -i "s|ExecStart=.*|ExecStart=$PYTHON_BIN $INSTALL_DIR/padsleep.py|" "$SERVICE_DIR/padsleep.service"
     sed -i "s|^User=.*|User=$RUN_USER|" "$SERVICE_DIR/padsleep.service"
     systemctl daemon-reload
     info "已复制 systemd 服务文件: $SERVICE_DIR/padsleep.service"
diff --git a/padsleep.service b/padsleep.service
index 942500a..b559154 100644
--- a/padsleep.service
+++ b/padsleep.service
@@ -7,7 +7,7 @@ After=network.target
 Type=simple
 User=_INSTALL_USER_
 WorkingDirectory=/opt/apps/padsleep
-ExecStart=/usr/bin/python3 /opt/apps/padsleep/padsleep.py
+ExecStart=/opt/apps/padsleep/.venv/bin/python3 /opt/apps/padsleep/padsleep.py
 Restart=on-failure
 RestartSec=10
 StandardOutput=journal
diff --git a/requirements.txt b/requirements.txt
index a9b23dd..fe66e90 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,4 +1,8 @@
 # padsleep_adb 依赖
+# 安装方式（在项目目录下）:
+#   python3 -m venv .venv
+#   .venv/bin/pip install -r requirements.txt
+
 adbutils>=2.12.0
 
 # 系统依赖：adb (Android Debug Bridge)