Abstract: Based on the practical needs of wood production,this paper discusses the supporting structure of curved segment on conveyer in theory.With the use of inner superhigh guide rolling support structure,the problem of serious wear has been solved,and the curved conveyer runs steadily.Through theoretical analysis,the principal parameters,such as radius of curve,inclination angle of guide slot,superhigh of inner rail and tensional calculation etc.,have been determined rationally,thus a concrete theoretical basis is provided for design of the curved conveyer.