With the rapid development of society and economy, the level of technology and culture in our country is constantly improving, and the content of product design extends from the product appearance design to the design of a whole system of product function, structure, material, production crafts, marketing, maintenance and recycling. The product innovation design thinking should not only consider a single factor, but also integrate the latest achievements in all aspects of the product design ecosystem. The research on innovative thinking and innovative design methods from all walks of life is also constantly systematized and theorized, but the innovative design thinking of products has different thinking characteristics and methods from other fields. This article combines product design examples of intelligent waste paper recycling machines to explore the application of innovative thinking methods in product design.