The utility model provides a small -size prefab shedder of railway, its characterized in that includes the frame, frame top surface welding has two angle steel archs, the protruding apex angle of angle steel up, the angle steel arch lies in the preceding side frame and back side frame middle part of frame respectively, the welding of frame bottom surface has the anti -skidding dog of a plurality of side direction, and the branch maybe lie in the anti -skidding dog in front and back of front and back side and control the anti -skidding dog of the left and right sides that inclines with lieing in, the handle has still been welded to the frame bottom surface, and the handle is located frame left side and right side respectively. The frame is processed by 40602 square steel, and the profile matches with prefab typical forms in it. Protruding 50508 angle steel that are of angle steel. The handle is processed by no. 16 round steel. To easy demoulding's problem not such as railway roadbed cable duct, prefabricated ditch, concerte cover plate, simple structure can repeat repetitious usage, avoids strikeing wastrel and the template loss that the drawing of patterns caused, practices thrift a large amount of construction cost.