Abstract: Objective To study the subjective well-being and the most impacting life events of Peking Union Medical College (PUMC). Methods Questionnaires were sent to students in PUMC. This includes Adolescent Self-Rating Life Events Check List (ASLEC) and General Well-Being Schedule (GWB). T tests, ANOVA and linear correlation are used to do statistics. Results 634 questionnaires were distributed, 390 are valid, accounting for 61.51 percent of the questionnaires. 155 are from male, 199 from female, 224 from premedical stage, 47 from stage of Basic Medicine, 166 from clinical stage. Premedical stage students get 74.23 ± 12.40 in the GWB scale, students in the stage of basic medicine get 72.09 ± 12.37, and clinical stage students get 79.57 ± 10.88. Different grades showed different results on ASLEC, however, in summary, they get 2.95 ± 0.93 in interpersonal relationship scale, 2.74 ± 0.81 in academic pressure scale and 2.94 ± 1.43 in lost scale. The partial correlation coefficients between academic pressure score and the GWB score is -0.317, p <0.001.Conclusion The academic pressure in the stage of basic medical is the highest, which lead to the lowest GWB score, this condition should be focused by school leaders.

Key words: Long-term, life events, subjective well-being