The utility model discloses a to rolling steamed bun making machine adjustable fender mechanism, include by stull down, left perpendicular propping, upward stull and the perpendicular inside casing that props the constitution in the right side, by baffle and two rail brackets combinations that the rectangular pipe welded the adjustable fender who constitutes and comprised rail brackets and the welding of guide rail angle steel, adjustable fender sets up in the middle of the inside casing, and the rectangular pipe welds in the inside of baffle both sides, and the left and right sides of baffle and one side of rectangular pipe are provided with the direction elongated slot, and direction elongated slot and the direction elongated slot on the rectangular pipe on the baffle coincide, a left side is erected to prop and is inlayed the pulley with the perpendicular lower part of propping in the right side through the fixed pin axle, and the pulley is arranged in inside the rectangular pipe, a left side is erected to prop to erect with the right side and is propped upper portion and be equipped with and bump round pin and locating plate, the rail brackets combination is installed in the inside frame of dustcoat through rail brackets, upward plane parallel and level in plane and the lower stull the utility model discloses seal baffle in the time of not only can be as unoperated state but can the during operation as connecing the face to use, easily lose and damage the phenomenon after having avoided the baffle to take off, it is more convenient to use