With the development of IoT technology, the products for the intelligent home have emerged, they must not only meet the traditional functions of life and use, but also use the technology of intelligent sensors, the technology of gateways, so on and so forth. Provide users with a fuller and smarter information interaction experience. The article explains the category and technical support of smart home products, study and compare the characteristics of its interaction design at this stage, summarize the interactive design principles of smart home products in the IoT scenario, looking ahead to the development of related fields in the future.