Aimed at the problems of broadcast storm,electromagnetic interference ,and electromagnetic radiation faced by the traditional wireless vehicle-to-vehicle (V2V) communica tion system,a V2V communication plan bas ed on vehicle-mounted light emitting diode (LED) is designed and developed in this paper.The single chip microcomputer (SCM ) is adopted as the main controller.The key circuit unit is utilized to code the traffic-related information into the electrical si gnal rapidly.With the high-speed modulated visible light radiated by the on-vehicle LED as the information carri er,the photodiode is also used to receive the optical carrier signal.Through the indicator,buzzer and liquid crystal display (LCD) circuit unit,the sound-light alarm and word-information display can be achieved.Moreover, the real-time wireless transmission of traffic-related information can be also achieved.The experimental results show that this system has the advantages of simple structur e,convenient operation,high safety and strong anti-electromagnetic interference ability.With the tra nsmission rate of 0.2Mbit/s and transmission distance of 30m,the bit error rate (BER) is lower than 10－5,thu s overcoming the weakness of the traditional wireless communication technology.As a great supplement to t he short-distance wireless communication technology,it has a bright market prospect.