Abstract: To meet the requirements of lightning electromagnetic pulse adaptability test of electronic and electrical equipment, it is necessary to develop a simulation device that meets the waveform of multiple pulse groups of lightning indirect effects. Multiple pulse groups with indirect lightning effects require the output of 60 adjustable interval current pulses, with a pulse current greater than 10 kA, a current front (10%−90%) of 100 ns, and a minimum current pulse time interval of only 50 μs. High requirements have been placed on analog devices. This article focuses on the simulation requirements of multiple pulse group currents for indirect effects of lightning, and has completed the design of a multiple pulse group simulation source for indirect effects of lightning. After the device is built, it can provide technical support for testing electronic and electrical equipment.