Dies and molds are the apparatus for realizing dreams and ideas. They are metallic tools that produce many copies of the same product precisely and speedily. Materials that can be made in this way include plastics, metals, glass fibers, glasses, rubbers, polystyrene foams and foods. In this paper, for the better understanding of dies and molds, the author describes several features of dies and molds, such as their basic mechanism, their classification, their merits, the contribution of high-quality dies and molds, the stages of development of the dies and molds industry, international competitiveness in the industry, and the development model for dies and molds.