目的 瘦身饮食类APP中情感化设计缺失，为了科学获取用户情感需求权重，有效提升APP界面用户体验满意度，提出一种情感化设计与A-Kano模型结合的界面设计方法。方法 首先，运用情感化设计的三层次模型，对用户需求进行定性分析，获取情感化设计需求要素;其次，运用A-Kano模型量化评估各个用户需求的层次属性，得到用户需求重要度排序。结果 以瘦身饮食类APP为例，实证了融合情感化设计与A-Kano模型的界面设计模型，可清晰呈现用户情感设计需求属性分类，准确排序需求优先级，规范了后续界面设计流程。结论 在该方法指导下的界面情感化设计具有可行性，能够有效提升用户体验满意度，可为界面研发提供新路径。

The work aims to propose a design model of APP interface design integrating emotional design and A-Kano model to scientifically obtain the weight of users' emotional needs and effectively improve the user experience satisfaction of APP interface, so as to solve the lack of emotional design in slimming diet APPs. Firstly, based on Donald Norman three level theory of product emotional experience, the elements of emotional design requirements were explored. Secondly, the A-Kano model was used to quantitatively evaluate the hierarchical attributes of each user need, and the importance ranking of user need was obtained. With a slimming diet APP as an example, it was demonstrated that the interface design model combining emotional design and A-Kano model could clearly present the attribute classification of users' emotional design needs, accurately sort the priority of needs, and standardize the subsequent interface design process. This shows that the emotional interface design guided by this method is feasible. It can effectively improve user experience satisfaction, and provide a new path for interface research and development.