Abstract:Motor-wheel trucks often suffer the impact of dynamic load in operation for its complicated operating mode,so that it is quite essential to study its dampimg systen.This paper discussed the composition,the function and the structual forms of the damping system of motor-wheel trucks,described the sorts and development phases of the suspension systems for realizing damping functions and emphatically approached the structure.The work principle and the clear superiority of NEOCON oil suspension system.