The work aims to study the evaluation method of sustainable design of outdoor classified garbage cans from the perspective of sustainable design, in order to better balance the comprehensive satisfaction of users, enterprises, environment, resources and other needs. Through field observation and interview research, multiple needs were collected, and the satisfaction survey data of preliminary needs were collected by the two-factor five-order Likert questionnaire. Kano model was adopted to analyze and calculate the need sensitivity and screen the needs. By taking the screened needs and corresponding sensitivity as the evaluation index and index weight, the sustainable design evaluation index system was constructed. Combined with the grey correlation evaluation algorithm, the schemes of outdoor classified garbage cans were evaluated and verified. 12 design schemes were used as the evaluation cases and ranked comprehensively, and then the comprehensive optimal scheme was further optimized by single index advantage. The practice results show that the sustainable design evaluation method of outdoor classified garbage cans based on multi-satisfaction can effectively evaluate the sustainable design quality of outdoor classified garbage cans, help designers optimize and improve the design scheme, and have strong operability.