According to the application requirements of the railgun, we put forward a novel circuit topology of superconducting magnetic energy storage(SMES) pulsed power supply based on STRETCH meat grinder circuit to solve the problems of eliminating arc at the inductive energy storage pulsed power muzzle and residual energy recovery. The simulation model of pulse power supply and simple railgun is established. In the simulation, the rail current is reduced to zero before the armature out of the muzzle and the energ...