The invention discloses a tunnel furnace drying system, which relates to the field of tunnel furnace equipment, including a furnace body, a track, a charging car, a loading tray and a driving mechanism. The invention optimizes the structural design of the existing tunnel furnace, adopts The operation mode of body + track + car body, that is, the material is always located on the loading tray of the car body (that is, the transfer equipment). After drying, it is transferred to the next station for subsequent processing. Compared with the traditional mesh conveyor belt The unique conveying method saves the process of repeated loading and unloading, saves manpower and material costs, and has fast drying speed, convenient operation and simple structure.