There are many ways of designing product. The article adopts the way , a systematic design by introducing the genetic theory of biological DNA( half-kept copying way) , that is to continue the identifying feature and they have some similarities in creation. The article combines gene of DNA in the biological field and industrial designing theory ,then to explore the basic theory of DNA product in the industrial designing by referring to the engineering theory of gene. In addtion, the article discusses DNA and its concept of DNA product and analyzes the comprising of DNA, then to apply the theory of DNA product to the product design. On the basis of analyzing their theories and have a research of DNA and product DNA, we select the electric pot of Medi Firm, a domestic bigger houshold electrical appliances enterprise, to make a modeling reseach and design.