Production of prototype model is an indispensable part of developing new products or upgrading products. Prototype model can visually reflect the designers’ innovation by physical products. Through the model, people can test the appearance,structure and function and to see if there is any problem of the model and finally eliminate the problem. Prototype model can effectively eliminate the risk of direct open mould. It can also be publicized advancely,which will be helpful to beginning sales,production preparation and inspect the market and take a lead of the market.