The buffer bed is mainly used to replace the buffer idler. The buffer bed is composed of buffer strips, which are mainly made up of excellent high elastic special rubber layer to fully and effectively absorb the impact of falling materials,and truly improve the stress state of the dropping point. The use of the buffer bed ensure the contact between the surface of the conveyor belt and the uniform stress, effectively prevents the longitudinal tearing of the belt caused by the fracture and falling of the idler, and greatly reduces the probability of the longitudinal tearing of the belt after it is penetrated by sharp tools or sharp materials.