The work aims to focus on the common difficulties in design innovation, implementation procedures and evaluation system of emotional products, integrate multidisciplinary research methods and models to break through the existing bottlenecks, and elucidate the innovation rules and evaluation bases of emotional design achievements. The BS method which integrated design thinking was adopted to circumvent the problems of loose ideas and low decision-making quality of the traditional method, and improve the efficiency and quality of the design results by combining the key elements. For the evaluation structure of design, the KANO model and the AHP method were integrated. The KANO model was used to classify the user needs, and the AHP method was used to classify the needs of competitors and the product and analyse the weight, so as to lock the degree of correspondence between users' core needs and the emotional level of the product through quantitative comparison, which was used as a basis for evaluating the ranking of excellent emotional product design. In conclusion, BS, AHP, and KANO forms a product design innovation method and design evaluation system with clear logic, easy execution, and expandable application.