By using questionnaire survey and statistical analysis method, this paper studies the influencing factors of medical students' behavior of seeking medical care and the utilization of medical services. It is found that there are three main choices of medical students' behavior of seeking medical care after illness, which are school hospital, community health service center and self-treatment, accounting for 36.5%, 24.2% and 15.9% respectively. And the grade, place of origin, medical security system and self-rated health status had significant effects on medical students' medical behavior (P<0.05).The place of origin and medical security system were the main influencing factors of medical students' utilization of medical services (P<0.05).Therefore, in order to guide the medical students to go to a doctor correctly and promote the effective use of medical services, the first is to enhance the medical care consciousness of medical students, the second is to develop the health management of college students, the third is to improve the medical service ability of school hospitals, the fourth is to perfect the medical security system of college students.