How to inspire, acquire and retain users efficiently has been a great problem for the development of mobile payment service providers. Given the differences in existing studies on many issues regarding users’ mobile payment adoption intention, this study selected 46 highly relevant empirical studies, used visual knowledge map to identify key factors and construct a conceptual model. Weight analysis and meta-analysis were applied to identify the key factors. Sub-group analysis was conducted to explore the moderating effect of age, use experience and location. The results show that young users are more influenced by usefulness and satisfaction. Current users care more about ease of use and trust. Different degrees of compatible expectations lead to the development gap between the East and the West. This study explored the interaction mechanism between user attributes and behavior intention, which consequently offer valuable suggestions for theoretical research and practical application in mobile payment.