In daily vehicle traffic accidents，the collisions between vehicles and solid objects （especially telegraph poles，trees，and cement columns etc.） occupy a large proportion. This paper introduces the rebuilding of accident of the collision between vehicle and cement column with energy grid method，motion path method，and PC crash to get operating speed of the vehicle during the accident and input the PC-Crash simulation results into the LS-DYNA as the initial conditions for collision simulation. By comparison of the deformation of vehicle and cement column and verification of the results of simulation，we can get the acceleration curve of the vehicle.