Cryogenic treatment plant of tool and mold is a machine with multi-purpose for cryogenic treatment for mold,tool,cutter and materials etc.. Through the method of connecting the advanced technology of gas replacement to the normally ways of liquid nitrogen cryogenic processing, gas replacement process is a fast and uniform cooling rate and good repeatability and consistency of cryogenic treatment  according to the customers’requirements, managing to reach two-purpose machine, save investment, reduce cost and improve efficiency.