Aiming at the main factors affecting the operational effect of anti-submarine assisted torpedo, the air and underwater trajectory models of anti-submarine assisted torpedo are established based on the analysis of its trajectory characteristics. According to the typical maneuver evasion style of enemy submarine, the simulation program was compiled according to the anti-submarine warfare process of anti-submarine assisted torpedo, and the influence of range, impact point deviation and active homing range on the hit probability of anti-submarine assisted torpedo was quantitatively analyzed. The results show that the analysis has a certain theoretical guiding significance for the simulation, test and training scheme of the anti-submarine assisted torpedo combat capability.