diff --git a/README.md b/README.md
index 221bb51..73ff1bd 100644
--- a/README.md
+++ b/README.md
@@ -1,4 +1,6 @@
 # DJITelloPy
+## [中文文档](README_CN.md)
+
 DJI Tello drone python interface using the official [Tello SDK](https://dl-cdn.ryzerobotics.com/downloads/tello/20180910/Tello%20SDK%20Documentation%20EN_1.3.pdf) and [Tello EDU SDK](https://dl-cdn.ryzerobotics.com/downloads/Tello/Tello%20SDK%202.0%20User%20Guide.pdf). This library has the following features:
 
 - implementation of all tello commands
diff --git a/README_CN.md b/README_CN.md
new file mode 100644
index 0000000..69a16c8
--- /dev/null
+++ b/README_CN.md
@@ -0,0 +1,87 @@
+# DJITelloPy
+这是一个大疆Tello无人机的Python接口，
+使用官方 [Tello SDK](https://dl-cdn.ryzerobotics.com/downloads/tello/20180910/Tello%20SDK%20Documentation%20EN_1.3.pdf) 和 [Tello EDU SDK](https://dl-cdn.ryzerobotics.com/downloads/Tello/Tello%20SDK%202.0%20User%20Guide.pdf)。 这个库有以下功能:
+
+- 支持使用所有的tello命令
+- 轻松获取视频流
+- 接受并解析状态包
+- 操控多架无人机
+- 支持Python3.6以上版本
+
+欢迎随时捐献！
+
+## 使用pip安装
+```
+pip install djitellopy
+```
+> 译者注：国内使用pip安装速度较慢，可能出现超时错误\
+> 建议使用国内镜像（此处为清华源）：
+> ```
+> pip install djitellopy -i https://pypi.tuna.tsinghua.edu.cn/simple/
+> ```
+
+对于同时安装了python2与python3的Linux发行版（Ubuntu、Debian等），使用：
+```
+pip3 install djitellopy
+```
+
+## 以开发者模式安装
+你可以使用下面的命令以 *可编辑模式* 安装此项目。这允许你修改此库并像正常安装的一样使用它。
+
+```
+git clone https://github.com/damiafuentes/DJITelloPy.git
+cd DJITelloPy
+pip install -e .
+```
+
+## 使用
+### 查阅API
+查看 [djitellopy.readthedocs.io](https://djitellopy.readthedocs.io/en/latest/) 以获取所有可用的类与方法。
+
+### 简单示例
+```python
+from djitellopy import Tello
+
+tello = Tello()
+
+tello.connect()
+tello.takeoff()
+
+tello.move_left(100)
+tello.rotate_counter_clockwise(90)
+tello.move_forward(100)
+
+tello.land()
+```
+
+### 更多示例
+在 [示例](examples/) 有一些代码示例:
+
+- [拍张照](examples/take-picture.py)
+- [记录视频](examples/record-video.py)
+- [一次控制多架无人机](examples/simple-swarm.py)
+- [使用键盘简单控制无人机](examples/manual-control-opencv.py)
+- [识别任务卡（应该是指挑战卡）](examples/mission-pads.py)
+- [使用Pygame实现键盘控制飞机](examples/manual-control-pygame.py)
+
+### 提示
+- 如果你使用 ```streamon``` 命令时返回 ```Unknown command```，你需要通过Tello app升级固件。
+- 挑战卡识别与导航只支持Tello EDU
+- 必须在明亮的环境下识别挑战卡
+- 只有Tello EDU支持连接一个已存在的wifi
+- 当连接一个已存在wifi时视频流不可用
+
+## 作者
+
+* **Damià Fuentes Escoté**
+* **Jakob Löw**
+* [更多](https://github.com/damiafuentes/DJITelloPy/graphs/contributors)
+
+## 译者
+* [C0derGeorge](https://github.com/C0derGeorge)
+
+
+## 许可证
+
+此项目遵循 MIT License - 查看 [LICENSE.txt](LICENSE.txt) 获取详情
+
diff --git a/examples/manual-control-opencv.py b/examples/manual-control-opencv.py
index f4b389b..ae7236a 100644
--- a/examples/manual-control-opencv.py
+++ b/examples/manual-control-opencv.py
@@ -5,6 +5,13 @@
 # When starting the script the Tello will takeoff, pressing ESC makes it land
 #  and the script exit.
 
+# 简单的演示如何用键盘控制Tello
+# 欲使用全手动控制请查看 manual-control-pygame.py
+#
+# W, A, S, D 移动， E, Q 转向，R、F上升与下降.
+# 开始运行程序时Tello会自动起飞，按ESC键降落
+# 并且程序会退出
+
 from djitellopy import Tello
 import cv2, math, time
 
@@ -19,6 +26,7 @@
 while True:
     # In reality you want to display frames in a seperate thread. Otherwise
     #  they will freeze while the drone moves.
+    # 在实际开发里请在另一个线程中显示摄像头画面，否则画面会在无人机移动时静止
     img = frame_read.frame
     cv2.imshow("drone", img)
 
@@ -42,4 +50,4 @@
     elif key == ord('f'):
         tello.move_down(30)
 
-tello.land()
\ No newline at end of file
+tello.land()
diff --git a/examples/manual-control-pygame.py b/examples/manual-control-pygame.py
index 5fc81da..67651f3 100644
--- a/examples/manual-control-pygame.py
+++ b/examples/manual-control-pygame.py
@@ -5,9 +5,12 @@
 import time
 
 # Speed of the drone
+# 无人机的速度
 S = 60
 # Frames per second of the pygame window display
 # A low number also results in input lag, as input information is processed once per frame.
+# pygame窗口显示的帧数
+# 较低的帧数会导致输入延迟，因为一帧只会处理一次输入信息
 FPS = 120
 
 
@@ -20,20 +23,34 @@ class FrontEnd(object):
             - Arrow keys: Forward, backward, left and right.
             - A and D: Counter clockwise and clockwise rotations (yaw)
             - W and S: Up and down.
+
+        保持Tello画面显示并用键盘移动它
+        按下ESC键退出
+        操作说明：
+            T：起飞
+            L：降落
+            方向键：前后左右
+            A和D：逆时针与顺时针转向
+            W和S：上升与下降
+
     """
 
     def __init__(self):
         # Init pygame
+        # 初始化pygame
         pygame.init()
 
         # Creat pygame window
+        # 创建pygame窗口
         pygame.display.set_caption("Tello video stream")
         self.screen = pygame.display.set_mode([960, 720])
 
         # Init Tello object that interacts with the Tello drone
+        # 初始化与Tello交互的Tello对象
         self.tello = Tello()
 
         # Drone velocities between -100~100
+        # 无人机各方向速度在-100~100之间
         self.for_back_velocity = 0
         self.left_right_velocity = 0
         self.up_down_velocity = 0
@@ -43,6 +60,7 @@ def __init__(self):
         self.send_rc_control = False
 
         # create update timer
+        # 创建上传定时器
         pygame.time.set_timer(pygame.USEREVENT + 1, 1000 // FPS)
 
     def run(self):
@@ -51,6 +69,7 @@ def run(self):
         self.tello.set_speed(self.speed)
 
         # In case streaming is on. This happens when we quit this program without the escape key.
+        # 防止视频流已开启。这会在不使用ESC键退出的情况下发生。
         self.tello.streamoff()
         self.tello.streamon()
 
@@ -78,6 +97,7 @@ def run(self):
             self.screen.fill([0, 0, 0])
 
             frame = frame_read.frame
+            # battery n. 电池
             text = "Battery: {}%".format(self.tello.get_battery())
             cv2.putText(frame, text, (5, 720 - 5),
                 cv2.FONT_HERSHEY_SIMPLEX, 1, (0, 0, 255), 2)
@@ -92,12 +112,17 @@ def run(self):
             time.sleep(1 / FPS)
 
         # Call it always before finishing. To deallocate resources.
+        # 通常在结束前调用它以释放资源
         self.tello.end()
 
     def keydown(self, key):
         """ Update velocities based on key pressed
         Arguments:
             key: pygame key
+
+        基于键的按下上传各个方向的速度
+        参数：
+            key：pygame事件循环中的键事件
         """
         if key == pygame.K_UP:  # set forward velocity
             self.for_back_velocity = S
@@ -120,6 +145,10 @@ def keyup(self, key):
         """ Update velocities based on key released
         Arguments:
             key: pygame key
+
+        基于键的松开上传各个方向的速度
+        参数：
+            key：pygame事件循环中的键事件
         """
         if key == pygame.K_UP or key == pygame.K_DOWN:  # set zero forward/backward velocity
             self.for_back_velocity = 0
@@ -137,7 +166,10 @@ def keyup(self, key):
             self.send_rc_control = False
 
     def update(self):
-        """ Update routine. Send velocities to Tello."""
+        """ Update routine. Send velocities to Tello.
+
+            向Tello发送各方向速度信息
+        """
         if self.send_rc_control:
             self.tello.send_rc_control(self.left_right_velocity, self.for_back_velocity,
                 self.up_down_velocity, self.yaw_velocity)
@@ -147,6 +179,7 @@ def main():
     frontend = FrontEnd()
 
     # run frontend
+
     frontend.run()
 
 
diff --git a/examples/mission-pads.py b/examples/mission-pads.py
index edf89a3..671e3c0 100644
--- a/examples/mission-pads.py
+++ b/examples/mission-pads.py
@@ -1,18 +1,21 @@
 from djitellopy import Tello
 
 # create and connect
+# 创建Tello对象并连接
 tello = Tello()
 tello.connect()
 
 # configure drone
+# 设置无人机
 tello.enable_mission_pads()
-tello.set_mission_pad_detection_direction(1)  # forward detection only
+tello.set_mission_pad_detection_direction(1)  # forward detection only  只识别前方
 
 tello.takeoff()
 
 pad = tello.get_mission_pad_id()
 
 # detect and react to pads until we see pad #1
+# 发现并识别挑战卡直到看见1号挑战卡
 while pad != 1:
     if pad == 3:
         tello.move_back(30)
@@ -25,6 +28,7 @@
     pad = tello.get_mission_pad_id()
 
 # graceful termination
+# 安全结束程序
 tello.disable_mission_pads()
 tello.land()
 tello.end()
diff --git a/examples/record-video.py b/examples/record-video.py
index 7206a92..d8f1c0f 100644
--- a/examples/record-video.py
+++ b/examples/record-video.py
@@ -12,6 +12,7 @@
 
 def videoRecorder():
     # create a VideoWrite object, recoring to ./video.avi
+    # 创建一个VideoWrite对象，存储画面至./video.avi
     height, width, _ = frame_read.frame.shape
     video = cv2.VideoWriter('video.avi', cv2.VideoWriter_fourcc(*'XVID'), 30, (width, height))
 
@@ -23,6 +24,7 @@ def videoRecorder():
 
 # we need to run the recorder in a seperate thread, otherwise blocking options
 #  would prevent frames from getting added to the video
+# 我们需要在另一个线程中记录画面视频文件，否则其他的阻塞操作会阻止画面记录
 recorder = Thread(target=videoRecorder)
 recorder.start()
 
diff --git a/examples/simple-swarm.py b/examples/simple-swarm.py
index 5e5793e..ec97b3e 100644
--- a/examples/simple-swarm.py
+++ b/examples/simple-swarm.py
@@ -10,12 +10,15 @@
 swarm.takeoff()
 
 # run in parallel on all tellos
+# 同时在所有Tello上执行
 swarm.move_up(100)
 
 # run by one tello after the other
+# 让Tello一个接一个执行
 swarm.sequential(lambda i, tello: tello.move_forward(i * 20 + 20))
 
 # making each tello do something unique in parallel
+# 让每一架Tello单独执行不同的操作
 swarm.parallel(lambda i, tello: tello.move_left(i * 100 + 20))
 
 swarm.land()