Purpose: This study was to investigate the relation between anger expression and burnout of psychiatric mental health nurses. Method: The subjects of this study consisted of 102 psychiatric mental health nurses in D city. data were collected through self-reported questionnaires from 1, March to 30, April in 2003. The data collected were analyzed using S.D., t-test, ANOVA, and Person`s correlation coefficients with SAS. Result: Anger-in were significant differences in the variables of field of service, marital status, duration of service in psychiatric unit, level of education, and position, Anger-control was a significant difference in the level of education. Burnout was a significant difference in the level of education. Physical exhaustion was a significant difference in age. Emotion exhaustion was a significant difference in marital status. Mental exhaustion was a significant difference in the level of education. There was a significant correlation between anger-control and burnout(r=-.20). There was a significant correlation between anger-in and burnout(r=.19). Conclusion: The results of this study suggest that there is a need to develope self-management program considering anger-control to alleviate emotional exhaustion in the psychiatric mental health nurses.