The ricochet process of shaped charge jet penetration different material target, including 603 armor steel and aluminum, with a small incidence angle ranging from 5° to 7° was numerically simulated by using ANSYS/LS-DYNA software.Their penetration and ricochet process were observed.Results show that the obtained numerical simulation results are consistent with the experimental data.When the velocity of jet head is 6500 m·s^-1, the critical incidence angle of the ricochet is between 6° to 7° for 603 armor steel and between 5° to 6° for aluminum and the ricochet angle of jet decreases with the increase of target strength.The ricochet process of jet includes two stages:at the first, jet head ricochet takes place when jet touch target and the rest of jet invade target.Then, the direction of motion of jet front deflects under an asymmetric resistance from target and jet leave target in the end.Subsequent jet jump out of target.The crater depth ratio under the situation of ricochet and not ricochet of 603 armor steel is 0.389 and lower than that of aluminum, which is 0.795, proving that the energy of jet consume in penetrating target crater and extended crater decreases along with the increase of target strength under the case of ricochet.