Objective: To understand the current situation of learning burnout and professional commitment of undergraduates majoring in psychiatry, and to explore the relationship between them. Method: A questionnaire survey was conducted among 120 psychiatric undergraduates in a medical college in Nanjing by using the College Students' Learning Burnout Scale and the College Students' Professional Commitment Scale compiled by Rong Lian et al. There are 109 valid questionnaires. Results: The score of psychiatric undergraduates’ learning burnout is 51.49±11.49, which reach the medium to low level. The proportion of mild, moderate and severe learning burnout among psychiatric undergraduates was 23%, 17.4, 17.4%. And the level of professional commitment is relatively higher（86.65±19.25）. There is no significant difference of learning burnout and professional commitment in gender and grade. Comparing the degree of void, mild, moderate and severe learning burnout, there is no significant difference among gender, one-child condition and family poverty, but there are statistical differences among grade(senior