| With the development of science and technology, different brands of similar products homogenization trend to be more obvious, the need of product is no longer just satisfied with the function,the various forms of products are full of our visual world, how to give the products the special shapes and styles image special in order to found the unique brand, has become one of the important work of the enterprises in the product the development of. Unique product image is enterprise external propaganda window, create the diversity of products is an important aspect of enterprise implementation of brand strategy. When design each generation of products of the same enterprise or brand, to make the series products in the visual image have a common "family" product identification features, each generation or the same generation to produce has the same characteristics between the effect of a series of products.In this paper, by reference to the DNA genetic engineering field of biology, combined the genetic gene DNA in the area of biology with the theory of industrial design, using the idea of genetic engineering, discusses the basic theory of product design based on product DNA in industrial design,the DNA heredity and variation product family design. With Jianghuai series electric forklift truck sdesign project as an example, combined with corporate culture, corporate brand, product development, design psychology, product semantics and other aspects of the theoretical basis, the actual product design application of the above product DNA concept in Jianghuai series electric forklift, application and improvement of verification in the design of a specific case, analysis and induction of genes and genetic products patterns of variation in Jianghuai series electric forklift design.In turn, to verify the relevant theory based on the product DNA concept. |