Objective To study a quick and easy method for getting σ_m-σ_stcurves of cushion materials of any height and thickness. Methods Using the traditional method to get a σ_m-σ_stcurve and the same cushion material to obtain five values of dynamic energy and dynamic stress according to the principle and steps of stress-energy method. Through Matlab programming, the function of static force and maximum acceleration was obtained by the polynomial and exponential fitting function models of dynamic energy and maximum acceleration. Results Compared with the traditional values, there were some errors in the polynomial and exponential fitting function models, and the error in the polynomial function model was smaller. Conclusion The results showed that the stress-energy method is more efficient in getting σ_m-σ_stcurves of cushion materials of any height and thickness, when the accuracy requirement is not very high.