To simulate the dynamic response of the cushion packaging system under the logistics environment actual -ly, a method on simulation for the cushioning packaging system based on road spectra analysis was developed .The road power spectral data of the national classified highways and the typical roads in China were conducted as input of the dynamic simulation for a truck in simulation software , and the acceleration data of the boxcar ’ s baseboard can be gotten , which is the excitation sources of the simulation for the cushioning packaging sys...