Injection mold according to forming characteristics distinguish for thermosetting plastic mold, and thermoplastic plastic mold two species; according to forming process distinguish for biography plastic die, and blow plastic die, and cast plastic die, and hot forming die, and hot die (pressure plastic die), and injection die,, which hot die to spill material way and can is divided into spill type, and half spill type, and not spill type three species, injection die to pouring system and can is divided into cold flow road die, and heat road die two species; to by handling way can is divided into mobile type, and fixed type two species.