diff --git a/.gitignore b/.gitignore
index 36b13f1..5d6c2fd 100644
--- a/.gitignore
+++ b/.gitignore
@@ -27,6 +27,10 @@ share/python-wheels/
 *.egg
 MANIFEST
 
+# PyPI
+*.whl
+*.tar.gz
+
 # PyInstaller
 #  Usually these files are written by a python script from a template
 #  before PyInstaller builds the exe, so as to inject date/other infos into it.
@@ -174,3 +178,24 @@ cython_debug/
 # PyPI configuration file
 .pypirc
 
+# Virtual environments
+.venv/
+venv/
+ENV/
+env.bak/
+venv.bak/
+
+# IDE
+.idea/
+.vscode/
+*.swp
+*.swo
+
+# Logs
+*.log
+
+# 开发环境
+.vscode
+.mimocode
+.codewhale
+
diff --git a/padsleep.py b/padsleep.py
index f496b58..c588ea7 100644
--- a/padsleep.py
+++ b/padsleep.py
@@ -14,14 +14,14 @@ import logging
 import os
 import signal
 import socket
-import subprocess
-import sys
 import threading
 import time
 from datetime import datetime
 from pathlib import Path
 from socketserver import ThreadingUnixStreamServer, StreamRequestHandler
 
+from adbutils import AdbClient, AdbDevice
+
 # ── 常量 ────────────────────────────────────────────────────────
 
 SCRIPT_DIR = Path(__file__).parent.resolve()
@@ -167,68 +167,72 @@ class TimeChecker:
 
 
 # ═══════════════════════════════════════════════════════════════════
-#  AdbManager — ADB 操作封装
+#  AdbManager — ADB 操作封装（使用 adbutils 库）
 # ═══════════════════════════════════════════════════════════════════
 
 class AdbManager:
-    """封装所有 ADB CLI 操作，所有异常都被捕获，不会导致进程退出。"""
+    """封装所有 ADB 操作，使用 adbutils 库实现持久连接。"""
 
     def __init__(self, config_getter):
         self._config_getter = config_getter
+        self._client: AdbClient | None = None
+        self._device: AdbDevice | None = None
         self._ready = False
         self._last_error = ""
         self._screen_on_since: float | None = None
         self._last_known_screen_on = False
-        self._last_adb_check = 0  # 限频用
+        self._last_adb_check = 0
 
-    # ── 底层命令执行 ──
+    # ── 连接管理 ──
 
-    def _exec(self, args: list, timeout: int = 10) -> tuple:
-        """执行 ADB 命令，返回 (returncode, stdout, stderr)。永不抛出。"""
+    def _ensure_client(self) -> AdbClient:
+        """懒初始化 ADB 客户端连接。"""
+        if self._client is None:
+            self._client = AdbClient(host="127.0.0.1", port=5037)
+        return self._client
+
+    def _ensure_device(self) -> AdbDevice | None:
+        """获取目标设备，支持串号过滤。"""
         config = self._config_getter()
-        adb_path = config.get("adb_path", "adb")
-        serial = config.get("adb_device_serial", "")
-
-        cmd = [adb_path]
-        if serial:
-            cmd.extend(["-s", serial])
-        cmd.extend(args)
+        target_serial = config.get("adb_device_serial", "")
 
         try:
-            r = subprocess.run(cmd, capture_output=True, text=True, timeout=timeout)
-            return r.returncode, r.stdout.strip(), r.stderr.strip()
-        except FileNotFoundError:
-            self._ready = False
-            self._last_error = f"ADB 未找到（{adb_path}），请安装: sudo apt install adb"
-        except subprocess.TimeoutExpired:
-            self._ready = False
-            self._last_error = "ADB 命令超时"
+            client = self._ensure_client()
+            if target_serial:
+                self._device = client.device(target_serial)
+            else:
+                devices = client.device_list()
+                self._device = devices[0] if devices else None
+            return self._device
         except Exception as e:
-            self._ready = False
+            self._device = None
             self._last_error = str(e)
-        return -1, "", self._last_error
+            return None
 
     # ── 设备管理 ──
 
     def check_available(self) -> bool:
-        """检查 ADB 是否可执行。"""
-        rc, _, _ = self._exec(["--version"], timeout=5)
-        return rc == 0
+        """检查 ADB Server 是否可连接。"""
+        try:
+            client = self._ensure_client()
+            client.device_list()
+            return True
+        except Exception as e:
+            self._last_error = f"ADB Server 不可用: {e}"
+            return False
 
     def list_devices(self) -> list[dict]:
-        """返回 [{"serial": "...", "status": "..."}]。"""
-        rc, out, _ = self._exec(["devices"])
-        if rc != 0:
+        """返回 [{"serial": "...", "status": "device"}]。"""
+        try:
+            client = self._ensure_client()
+            devices = client.device_list()
+            return [{"serial": d.serial, "status": "device"} for d in devices]
+        except Exception as e:
+            self._last_error = str(e)
             return []
-        devices = []
-        for line in out.split("\n"):
-            parts = line.strip().split("\t")
-            if len(parts) >= 2 and not line.startswith("List"):
-                devices.append({"serial": parts[0], "status": parts[1]})
-        return devices
 
     def get_ready_device(self) -> str | None:
-        """返回第一个状态为 device 的串号，无则返回 None。"""
+        """返回第一个已连接设备的串号，无则返回 None。"""
         for d in self.list_devices():
             if d["status"] == "device":
                 return d["serial"]
@@ -237,57 +241,67 @@ class AdbManager:
     def is_ready(self) -> bool:
         """检查是否有已授权的 ADB 设备可用。"""
         now = time.time()
-        # 限频：每秒最多检测一次
         if now - self._last_adb_check < 1 and self._ready:
             return True
         self._last_adb_check = now
 
         config = self._config_getter()
-        target = config.get("adb_device_serial", "")
+        target_serial = config.get("adb_device_serial", "")
 
-        devices = self.list_devices()
-        for d in devices:
-            if d["status"] == "device" and (not target or d["serial"] == target):
-                self._ready = True
-                self._last_error = ""
-                return True
+        try:
+            client = self._ensure_client()
+            devices = client.device_list()
+
+            for d in devices:
+                if not target_serial or d.serial == target_serial:
+                    # 尝试获取设备属性以验证连接
+                    d.getprop("ro.build.version.sdk")
+                    self._device = d
+                    self._ready = True
+                    self._last_error = ""
+                    return True
+
+            if not devices:
+                self._last_error = "未检测到 ADB 设备，请连接平板"
+            else:
+                self._last_error = f"未找到指定设备: {target_serial}"
+        except Exception as e:
+            self._last_error = str(e)
 
-        # 诊断
-        unauthorized = [d for d in devices if d["status"] == "unauthorized"]
-        if unauthorized:
-            self._last_error = f"设备未授权: {[d['serial'] for d in unauthorized]}，请在平板上确认授权"
-        elif not devices:
-            self._last_error = "未检测到 ADB 设备，请连接平板"
-        else:
-            self._last_error = "没有已就绪的 ADB 设备"
         self._ready = False
+        self._device = None
         return False
 
     # ── 屏幕控制 ──
 
     def get_screen_state(self) -> tuple[bool, str]:
         """返回 (is_on, wakefulness)，失败时返回上次已知状态。"""
-        rc, out, _ = self._exec(["shell", "dumpsys", "power"])
-        if rc != 0:
-            return self._last_known_screen_on, "unknown"
+        try:
+            device = self._ensure_device()
+            if device is None:
+                return self._last_known_screen_on, "unknown"
 
-        for line in out.split("\n"):
-            line = line.strip()
-            if "mWakefulness" in line:
-                state = line.split("=")[-1].strip()
-                is_on = state == "Awake"
-                self._last_known_screen_on = is_on
-                if is_on and self._screen_on_since is None:
-                    self._screen_on_since = time.time()
-                elif not is_on:
-                    self._screen_on_since = None
-                return is_on, state
+            output = device.shell("dumpsys power")
+            for line in output.split("\n"):
+                line = line.strip()
+                if "mWakefulness" in line:
+                    state = line.split("=")[-1].strip()
+                    is_on = state == "Awake"
+                    self._last_known_screen_on = is_on
+                    if is_on and self._screen_on_since is None:
+                        self._screen_on_since = time.time()
+                    elif not is_on:
+                        self._screen_on_since = None
+                    return is_on, state
+
+            # fallback
+            for line in output.split("\n"):
+                if "Display Power" in line or "mScreenOn" in line:
+                    is_on = "ON" in line.upper() or "=true" in line.lower()
+                    return is_on, "unknown"
+        except Exception as e:
+            self._last_error = str(e)
 
-        # fallback
-        for line in out.split("\n"):
-            if "Display Power" in line or "mScreenOn" in line:
-                is_on = "ON" in line.upper() or "=true" in line.lower()
-                return is_on, "unknown"
         return self._last_known_screen_on, "unknown"
 
     def get_screen_on_duration(self) -> float:
@@ -299,23 +313,35 @@ class AdbManager:
     def screen_off(self) -> bool:
         """发送息屏命令。"""
         log.info("执行息屏操作")
-        rc, _, err = self._exec(["shell", "input", "keyevent", "26"])
-        if rc == 0:
+        try:
+            device = self._ensure_device()
+            if device is None:
+                log.error("息屏失败: 无可用设备")
+                return False
+            device.shell("input keyevent 26")
             self._screen_on_since = None
             return True
-        log.error("息屏失败: %s", err)
-        return False
+        except Exception as e:
+            self._last_error = str(e)
+            log.error("息屏失败: %s", e)
+            return False
 
     def screen_on(self) -> bool:
         """发送亮屏并解锁命令。"""
         log.info("执行亮屏操作")
-        rc, _, err = self._exec(["shell", "input", "keyevent", "26"])
-        if rc == 0:
+        try:
+            device = self._ensure_device()
+            if device is None:
+                log.error("亮屏失败: 无可用设备")
+                return False
+            device.shell("input keyevent 26")
             self._screen_on_since = time.time()
-            self._exec(["shell", "input", "keyevent", "82"])  # 解锁（MENU）
+            device.shell("input keyevent 82")  # 解锁（MENU）
             return True
-        log.error("亮屏失败: %s", err)
-        return False
+        except Exception as e:
+            self._last_error = str(e)
+            log.error("亮屏失败: %s", e)
+            return False
 
 
 # ═══════════════════════════════════════════════════════════════════
diff --git a/requirements.txt b/requirements.txt
index 8ba4822..a9b23dd 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,5 +1,6 @@
 # padsleep_adb 依赖
-# 本程序仅使用 Python 标准库，无需额外安装第三方包。
+adbutils>=2.12.0
+
 # 系统依赖：adb (Android Debug Bridge)
 #   安装: sudo apt-get install adb
 #