Since the split Hopkinson pressure bar (SHPB) test can not describe the effect problem on pyrotechnics using acceleration, an equivalent equation of bullet speed and acceleration of SHPB test was obtained using results of SCB pyrotechnics from by air cannon and SHPB tests, such as axial strain, time to reaction, chip firing energy etc and taking that the acceleration of air cannon test is equivalent to the bullet speed of the SHPB test. An overload acceleration mechanics simulation test method of pyrotechnics for SHPB test is established finally.