Abstract: A 150 kV pulsed X-ray test system is designed according to the principle of bipolar charged Marx generator. It is mainly used for ballistics studies, impact studies and fluid dynamics simulation of weapons in flash photography. A 15-stage Marx generator is designed in coaxial structure and used in the pulse generator to shorten the pulse width of output pulses. Marx generator connects with the flash X-ray tube through a high-voltage cable. For a charging voltage of 20 kV per stage, the Marx generator generates a more than 150 kV pulse voltage that is applied to the X-ray tube. The X-ray tube generates a dose 7.810-6 C/kg at 0.25 m away for flash X-radiography with a pulse width of 60 ns. The size of X-ray source is 2.5 mm. 150 kV pulsed X-ray test system used with computed radiographic system be able to an imaging area of up to 30 cm40 cm, resolution is greater than 1 lp/mm for X-ray image . It is the ideal tool for high-speed radiation photography.