This paper aims to propose a set of household product design methods and paths of Internet of things (IoT) from the perspective of positive experience. First, the concepts and research status of positive experience design and IoT household product design are defined by literature review. Second, based on the previous literature, the positive experience design paths of IoT household products are proposed, including individual pleasant experience design path, individual goal realization design path, group demand satisfaction design path, and group relationship harmony design path. Third, the household IoT coffee machine is taken as the design case to verify the design paths based on the user qualitative interview. Fourth, the design results and design paths are analyzed and evaluated, and suggestions are provided for the future research. An IoT household product is proposed by the design paths which provided in this paper. This study helps IoT household product designers to effectively balance the conflict between the needs of family members and the conflict between individual short-term pleasure and long-term goal in design practice, so as to realize the contributions of IoT technology to individual and family well-being.