With the improvement of the national economy level, the concept of intelligent life sinks deeper and deeper into people's hearts. The field of vehicle also develops to the direction of intellectualization. The intelligent vehicle anti-collision technology applied to vehicle could greatly improve vehicle’s active safety performance, consequently improve road traffic safety. This paper summarizes the vehicle anti-collision technology with different mechanism and the vehicle anti-collision security model, analyses their characteristics and existing problems, and discusses and prospects the future research of the vehicle intelligent collision avoidance technology.