〔Abstract〕 Objective To explore the impact of the mentoring and peer education training model on the scientific research ability of nursing undergraduate students. Methods 70 undergraduate nursing interns were selected and divided into two groups using a random number table method in Shenzhen Second People's Hospital , with 35 students in each group. The control group implemented a mentor based teaching mode according to the routine, while the observation group combined peer education and training mode on the basis of the control group. The research abilities and motivation levels of the two groups of nursing undergraduate students before and after the internship were compared. Results After the intervention, the research motivation and ability of undergraduate interns were improved, and the scores of research ability and motivation in the observation group were significantly higher than those in the control group, the differences were statistically significant (P < 0.05). Conclusion Compared to the simple mentor based teaching model, the mentor combined with peer education model can more effectively improve the research ability and motivation level of nursing undergraduate interns.