RESUMO
Based on the content of medical professionalism and the theoretical model of knowledge, belief and practice, this paper used the methods of "inductive category construction" and "deductive category construction" to form the categories and analyze the text, taking the narrative materials of 112 "volunteer stars" outstanding individuals selected by the pre-medical student office of student affairs department of Peking University Health Science Center from 2019 to 2021 as the research subjects. The findings demonstrated that volunteer service had a positive effect on the cultivation of medical professionalism of medical freshmen, and played an effective role in guiding medical freshmen from the two dimensions of knowledge and belief, in which the role of medical voluntary service was more obvious. However, the breadth and depth of volunteer service in cultivating medical professionalism were limited. Based on this, this paper proposed that medical colleges and universities should emphasize voluntary service in the cultivation of medical professionalism, especially the development of medical voluntary service activities designed for medical students, and strengthen the cultivation effect by coordinating with other cultivation methods.