It aims to research the application of interaction design principle of commonality in children's early education ecological products. Taking the new market development and design of a children's early education robot as the research object, through the analysis of different groups on the usage of the product research, from the sense of touch, visual index, the basic interactions such as speech recognition method to the concept of children's early education robot ecological function, and its general design features a new level of science and technology are shown. The development process, the children's early education ecological robots will fully interprets the traffic design innovation and the necessity of the principle of commonality. Universal design principles can further broaden the product interaction research level, so the importance of interaction design principle of commonality. In the process of the future development of children's early education products, designers will focus on using the principle of interaction design commonality to deep redesign of product features, so as to improve the market competitiveness of products.