Abstract: By the ANSYS/LS-DYNA code, two new projectiles were designed based on the homemade 9 mm handgun projectile. The two new projectiles with soft and empty tines have the capability of high execution and low inbreaking. The velocity attenuation, displacement, relative kinetic energy variation curves and the instantaneous cavum were obtained by simulating the three projectiles entering the water. The acquired velocity attenuation curve is almost the same to the experimental velocity attenuation curve. Comparisons of the results reveal that capabilities of high execution and low inbreaking of the projectile with empty tine are better than those of the projectile with soft tine. Calculations show that the ballistic trajectory will motion in the process of the projectile with empty tine entering the water with oblique angle.