The multiple mechanisms of entrepreneurial intention are still an open issue, and few have explored whether the relationship between entrepreneurial intention and proactive personality is influenced by entrepreneurial passion. This study aims to reveal the mediation role of entrepreneurial passion between proactive personality and entrepreneurial intention with the application of the classic structural equation modeling. A questionnaire survey was conducted on Chinese undergraduates and 647 questionnaires were collected for the further analysis. The main findings shed light on the mechanisms that underpin entrepreneurial passion and contribute to the growing body of knowledge on entrepreneurial intention and will raise implications for both academic entrepreneurial theory and practice.