Industrial design is a design practical activity based on innovation. TRIZ is a method and tool about systematic innovation. The invention principles of TRIZ are suitable for finding a new path of industrial design. This paper analyses the basic principle of TRIZ theory, and discusses the application of the principle of TRIZ in industrial design field. On the basis of the theory of TRIZ, two new products are designed. The corresponding result shows the combination of industrial design and innovation methods will promote industrial design.