Abstract: New wood plastic composite material, is a very promising “low carbon, environmental protection, recyclable” material, with high mechanical strength, corrosion resistance, good processing performance and other excellent properties, China vigorously promote the application process of environmental protection materials, can effectively solve the ecological problems such as energy consumption and environmental damage. However, due to the consideration of production cost, technology, market demand and user acceptance, the application of WPC products is limited. For wood plastic composite material is widely used in the product design, this article will TRIZ theory is introduced into the wood plastic product innovation design, and from wood plastic products of three common problems existing in the design process is analyzed, and combining the principle of invention problem solving method is put forward, in order to provide diversification for enterprise research and development of wood plastic products of solution and solution.

Key words: TRIZ theory, Wood plastic composite profile, Principle of invention, Product design, Environmentally friendly products