Abstract: It points out that the critical role of the chute in the design of preparation plant coal, the paper explains that the main factors should be paid attention to in the design of the chute, such as the arrangement, cross section, angle, sealed and cushion, noise reduction, wear resistance, Maintenance. The chute of conveyer, screen, crusher etc.is introduced. The structure of the chute should be satisfied by the demands on the property of the feeding or material-receiving equipment.The paper also enumerates three chutes which prevent lump coal crushing, The dial wheel chute of anti-broken is emphatically introduced.