This book delves deeply into the core concepts and practical approaches of smart home appliance product design. Firstly, it combines relevant theoretical research on user experience to construct a design framework for smart home appliances based on user experience. Secondly, it focuses on the interaction design of smart home appliances, elaborately analyzing the close relationship between interaction design and user experience, and introducing the application process of interaction design in home appliances. Furthermore, it introduces the theory of cognitive neuroaesthetics and explores its strategies and practices in the design of smart home appliances. Subsequently, it pays attention to the visual design of smart home appliance systems under the Internet of things technology. Finally, it takes the Xiaomi IoT smart air purifier and COLMO smart air conditioner as examples to demonstrate the design strategies and practical achievements of specific products.