According to the molding characteristics of injection mold, thermosetting plastic mold, thermoplastic plastic mold two types; According to the molding process for the transfer of plastic mold, blow molding, cast plastic mold, thermoforming die, hot-pressing mold (die), injection mold, including hot-pressing mold to overflow mode can be divided into overflow, semi-overflow, not overflow type three kinds, Injection mold to the gating system can be divided into cold runner mold, hot runner mode, according to the type of loading and unloading can be divided into mobile, fixed type two.