This study was made to analyse the nursing professional attitudes and mental health of clinical nurses in order to promote good mental health and positive attitudes. The 150 subjects obtained from 3 hospitals in Seoul completed a self-report questionnaire. Demographic data was collected in addition to data about nursing professional attitudes and mental health. The data was analyzed by SAS, t-test, scheffe's test, pearson's correlation and the GLM procedures. The results of the data analysis as follows : 1) Nursing professional attitudes were positive(MS=3.76). 2) Mental health was shown to be satisfactory (MS=0.65). 3) The relationship between nursing professional attitudes and mental health of the subjects were shown to be significant according to the professional education(r=-0.19, p=0.03*), anxiety(r=-0.23, p=0.01**), hostility(r=-0.09, p=0.03*), phobicanxiety(r=-0.18, p=0.04*), but there was a significant difference according to the purist of social profit with anxiety(r=-0.17, p=0.03*). There was a significant difference according to autonomy with somatization(r=-0.23, p=0.01**), obsessive-compulsive(r=-0.22, p=0.01**), depression(r=-0.20, p=0.02*), anxiety((r=-0.17, p=0.05*). Finally, There was a significant difference according to ethics with hostility(r=-0.17, p=0.05*). 4) According to nursing professional attitudes and demographic factors there was a significant difference in the professional position(t=2.01, p=0.05*), work location(f=4.99, p=0.01**), length of employment(r=3.66, p=0.03*). 5) The nursing professional attitudes and occupational factors showed a positive correlation with the anticipation of length of employment(t=2.00, p=0.05*). 6) According to Mental health and dmographic factors there was a significant correlation with the professional position(t=-2.21, p=0.03*). 7) According to mental health and occupational factors there was a significant difference correlation. Based on the study results, the following recommendation are made : 1) Nursing education curriculum should be developed for the continuous promotion of mental of professional nurses. 2) Follow up study of identification of the variables which positively influence professional nurses attitudes.