Various applications of computer simulation to high energy backscattering analysis were systemetically summarized.With the aid of the data measured in the accelerator lab at Fudan University

the data base of the computer simulation program RUMP was renewed to make it applicable to higher energy region.Some experimental results to elucidate superiority of the simulation were given and a new approach for quick calculation of non-Rutherford backscattering cross section based on the simulation principle was suggested.Experimental resultS of 4He-12C scattering were also presented.