The invention provides a winding machine for a packing belt. The winding machine comprises a machine body; a guide device is arranged above one side of the machine body; a coiling device is arranged below the guide device. The winding machine further comprises a locking binding device; the binding device comprises a right moving compressing plate and a left moving compressing plate, wherein the right moving compressing plate is inserted into a right baffle and can move in the right baffle; the left moving compressing plate is inserted into a left baffle and can move in the left baffle; steel wire ropes are connected to the outer sides of both the right moving compressing plate and the left moving compressing plate through supporting rods; a right fixing ring is arranged at the upper end of the right moving compressing plate; a left fixing ring is arranged at the upper end of the left moving compressing plate. The winding machine for the packing belt is simple in structure, convenient to operate, and reasonable in design; the work of winding the packing belt can be effectively done; meanwhile, the packing belt can be bound, and therefore, the processing time is saved, both time and force can be saved, and the appearance quality is improved.