A dynamic linearity calibration system, dual warhead Hopkinson bar,was designed to calibrate the dynamic linear parameters of a micro accelerometer with high measurement range accurately. On the basis of one-dimension stress wave theory and elastic wave superposition principle, the influences of the dual warhead Hopkinson bar with different sizes on the required acceleration signals were analyzed. The ANSYS/LS-DYNA was employed to simulate the shock effect of the dual warhead Hopkinson bar under different design conditions. According to analysis and simulation on different factors, the design parameters were determined. Then, a dynamic linearity calibration system(dual warhead Hopkinson bar) for accelerometers with the diameter of 30 mm and the length of 1 200 mm was designed. The dual warhead Hopkinson bar was used in the dynamic linearity calibration of an accelerometer with high measurement range. The results indicate that the dynamic linear error of the accelerometer is within 5%, which verifies that the dual warhead Hopkinson bar designed is feasible for dynamic linearity calibration of the accelerometers with higher measurement ranges,and the calibration results satisfy the requirements of shock calibration.