With the development of automobile electronic and Internet technologies, more and more attention has been paid to the car safety and reliability. In order to solve the communication problem caused by the increase of automobile electronic devices, we develop CAN/LIN body network system. CAN/LIN networking technologies are excellent solutions for a wide range of industrial & automotive embedded applications. They are well proven in the automotive field, where their speed, reliability and standardization have been continually tested under the most difficult conditions. Furthermore, the system has EOL feature.