The invention discloses a large power parallel double-switch forward DC/DC power supply module comprising switch tubes Q1, Q2, transformers T1, T2, a PWM control circuit, an input filter capacitor C1, an output filter capacitor C2, a rectifier circuit, a feedback and overvoltage protection circuit, and an overcurrent protection circuit; the power supply module employs an integrated design; a DC/DC converter power circuit employs an interlace parallel double-switch forward circuit topology form; the circuit portion designs two single-end switch forward circuit topology forms to be integrated and paralleled so as to realize power expansion, thus solving the problems that a domestic same-size product uses two power conversion magnetic cores, and an output power cannot reach a foreign same-kind product, so four power conversion magnetic cores can satisfy DC/DC power supply module power conversion requirements; the large power parallel double-switch forward DC/DC power supply module is small in size, high in efficiency and reliability, good in heat radiation performance, and wide in application scope.