BackgroundAccording to previous studies, nursing students' anger expression patterns, depression and self-esteem significantly affected the physical and mental well-being of patients. It is of utmost importance that the relationship among them is thoroughly investigated in this study. AimThe purpose of this study was to examine the degrees of anger expression patterns, depression and self-esteem of Korean nursing students and to examine the correlations among them. MethodsThis was a descriptive cross-sectional study. The subjects consisted of 320 Korean nursing students at colleges in S and G city, Korea. The measurements were based on the Korean standard STAXI (State-Trait Anger Expression Inventory), SCL-90-R (Symptom Checklist-90-Revision) and SLCS-R (Self-Liking/Self-Competence Scale-Revised Version). ResultsIn the analysis of the degrees of variances, the subjects showed lower anger repression, anger expression, control of anger and depression. The degree of self-esteem revealed a higher than the median value. There were significant correlations among anger expression patterns (anger repression, anger expression and anger control), depression and self-esteem. LimitationsThe study limitations were the degree of representativeness of the setting and sample, and its generalizability. ConclusionBased on the findings of this study, interventions are needed for Korean nursing students in order to promote anger management and improved self-esteem. Implications for nursing and health policyThe development of an anger control programme for nursing students should focus on lowering depression and enhancing self-esteem. One of the policy issues focused on providing anger management programmes for lowering depression and enhancing self-esteem. This study will enable nursing students to recognize the importance of controlling their anger, enhancing their self-esteem, establishing positive emotions and improving their overall well-being as future professional nurses.