This paper introduces the design of car remote monitoring system based on Internet. Firstly, the control instructions from the client are sent to the remote server via TCP/IP internet. Then the server sends the instructions to the car MCU system through the wireless communication module based on RS232 port, so as to accomplish the network control of the car. Meanwhile, the car's velocity and the real-time information acquired by the sensors will be transmitted to the server terminal via another wireless communication module installed on the car. Finally, both the server and the client's monito...