Die and demolding structure capable of improving precision for bolt forming

The invention discloses a die and a demolding structure capable of improving precision for bolt forming. The die and demolding structure comprises a base bin, supporting plates, a machining assembly and a driving assembly; the supporting plates are fixed to the two sides of the upper end face of the base bin, a top plate is fixed to the upper end faces of the supporting plates, a hydraulic rod is embedded in the top plate in a penetrating mode, and a clamp is installed at the output end of the lower portion of the hydraulic rod; the machining assembly is arranged at the upper end of the base bin; and the driving assembly is arranged in an inner cavity of the base bin. Under the action of the machining assembly, when a metal rod is inserted into a lower barrel body and threads are formed through forming slot lines, the rotating lower barrel body can throw generated waste chips out of multiple discharging grooves, the situation that the waste chips are accumulated in the barrel body, and consequently a knife ed