The present invention discloses a system and method used for researching an explosive stress wave interaction mechanism. The system is characterized in that a time-delay controller is utilized to send out trigger signals to control a multi-channel pulse igniter, the multi-channel pulse igniter ignites the explosives in explosive charges after receiving the trigger signals, and the explosive explosion generates the explosive stress waves to act on a tested member; the time-delay controller sends out at least two trigger signals simultaneously or orderly to control the multi-channel pulse igniter to ignite the plurality of explosive charges simultaneously or orderly, so that the different explosive stress waves are generated in the tested member simultaneously or orderly; after receiving the trigger signals, the multi-channel pulse igniter discharges immediately at the tip of an igniting probe connected with a signal line to ignite the explosives in the explosive charges to thereby generate the explosive stress waves. The positions of the explosive charges and the explosive quantity can be changed to thereby change the intensities of the explosive stress waves and the superposition situation among different stress waves, so that an experiment loading system has a great flexibility, and can satisfy different experiment requirements.