This paper introduces the concept of genes to the design of the product, put forward and set up product genetic model, aimed at apply the principle of gene expression to implement the product intelligent design, and strengthen the autonomy of product design, reduce artificial participation and related investment, improve the efficiency of product design, promote the development of product intelligent design. This paper first analyzes the problems existing in products genetic model, based on this, puts forward and establish the genetic model based on the feature of the products. On the basis of the definition of product gene structure, puts forward binary coding system of product gene and related operations. Then, based on product gene model, establish gene expression process model, product gene expression process is divided into two steps, transcription and translation, and transcription can be divided to two stages respectively. Finally, apply the theory of this paper to the engine products, to implement the intelligent design of the engine product, and has obtained the expected effect. Keywords-component; feature; product gene; gene coding; gene operation; gene expression
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