Cushion shock absorber are widely used in the automobile suspension system to accelerate the attenuation of the vibration of the frame and body, and to improve the ride comfort and comfort of the automobile. Nearside front shock absorbers are vulnerable parts in the process of automobile use. The working quality of shock absorbers will directly affect the stability of automobile driving and the life of other parts. Therefore, we should make the shock absorbers often in good working condition. The following methods can be used to check whether the shock absorber works well. Make the car stop after running 10km on the road with poor road conditions, touch the shell of the shock absorber by hand, if it is not hot enough, it means there is no resistance inside the shock absorber, and the shock absorber does not work. At this time, the appropriate lubricating oil can be added, and then the test, if the shell heat, for the shock absorber internal lack of oil, should add enough oil; Otherwise, the shock absorber fails.