User satisfaction has become an important factor in determining the competitiveness of bike-sharing enterprises. In order to provide theoretical basis for bike-sharing enterprises to optimize their products and services, it is necessary to explore the relevant factors that affect the satisfaction of bike-sharing users and the importance of these factors. Firstly, key factors were extracted from literature analysis and questionnaire surveys,and on the basis, a hierarchical structure model was constructed . Next, the weight ranking of each factor and the differences among the three brands based on Analytic Hierarchy Process(AHP) were comprehensively evaluated. The results show that safety factors have the highest degree of influence. In addition, bicycle condition, difficulty in finding bicycles, and riding comfort are the top three factors that users are most concerned about. Finally,four suggestions are put forward for bike-sharing enterprises based on the research findings.