Specific to the scenario-based development of smart kitchen appliances and the increasing emotional needs in the home collaborative cooking process, the work aims to analyze users' cooking behavior and emotional needs through the theory of emotional design, so as to explore the design strategies for experience optimization in the use of kitchen appliances from the perspective of multi-person collaboration. Based on the theory of emotional design, household observation and interview methods are used to obtain user data and analyze users' collaborative cooking behavior. Three types of typical users are obtained and the emotional needs of different types of users are summarized. Two typical scenarios of users participating in collaborative cooking are constructed. Combined with the three levels of emotional design, a design model and a design strategy are proposed from three aspects of physical attributes, interactive attributes, and value attributes. This study provides a user-emotional needs-oriented design method for smart kitchen appliances in the context of multi-person collaboration in the home kitchen. It helps improve the cooking experience, promotes emotional communication among family members, and provides theoretical support and design ideas for design and innovation in the context of multi-person collaboration.