Objective　To investigate the status of occupational stress and its influencing factors among undergraduate interns. Methods　Three hundred and seventeen interns in Subei People's Hospital of Jiangsu Province were collected as research objects. In this study

the Job Content Questionnaire (JCQ)

Effort-Reward Imbalance (ERI) Questionnaire and self-compiled general information questionnaire were used to evaluate the status of occupational stress and its influencing factors

and the regression analysis was carried out. Results　The results showed that 101 (31.9％) and 115 (36.3％) undergraduate interns were in significantly higher level occupational stress according to the JCQ and the ERI questionnaire respectively. Logistic regression analysis showed that the risk factors of the included occupational stress included the planning of further studies

more than 40 hours per week for internship

high score of intrinsic engagement and low score of social support. Exercise of more than three times a week was a protective factor for interns' occupational stress. Conclusion　The occupational stress of the undergraduate interns is at a high level and affected by many factors. Schools and hospitals should provide targeted mental health education for interns and improve relevant management policies.