In order to study the concrete's damage caused by the EPW's penetration, the subscale test was designed and multilayer colorized concrete target was made, the experiment was simulated with LS-DYNA3D. After being penetrated by the kinetic energy projectile, the target was cut. Since the concrete had different color in different part, it was found that the concrete surrounding the bullet-hole had displacement and the region was more than triple projectile diameter. Based on dry and wet dividing line on the concrete cut surface, the damage of transit tunnel was obtained. Through comparing the experimental data with the simulation result, it shows that the numerical analysis tallied closely the experiment. The simulation study method can be used in the penetrating study of the real projectile and it can satisfy the demand of engineering study.