Abstract: Objective To investigate the effect of “sandwich” teaching method in epidemiology teaching and improve the learning effect of medical students on epidemiology knowledge.Methods A total of 120 undergraduates of five-year preventive medicine in Tianjin Medical University were selected as the subjects. The students were randomly divided into experimental group and control group. The experimental group adopted the “sandwich” teaching method while the control group adopted the traditional teaching method to compare the influence of the two teaching methods on the students' academic achievement and the students' identity rate.Results The average theoretical scores, the case analysis scores, the total scores and the teaching identity rate were all higher than which in the control group.Conclusions “Sandwich” teaching method is superior to the traditional teaching method, which is a good way to popularize epidemiology teaching.

Key words: Medical undergraduate education, Epidemiology, “Sandwich” teaching