The purposes of this research were to study the nurse directors' competenciesand to determine the relationships between personal background, personal trait andworkplace environment with nurse directors' competencies as perceived by themselves,community hospitals. The sample was 262 of nurse directors in community hospitals. The research instruments were the assessment questionnaire of personalbackground, personal trait, workplace environment and nurse directors' competencies.The reliability of instruments, calculated by Cronbach Alpha Coefficient were .98. Thedata were analysed by percent, mean, standard deviation, Contingency coefficient, Chisquare and Pearson's product moment correlation coefficient. The major findings were as follows: 1. The entire competencies level of nurse directors was at middle level. Thecompetencies of leadership, nursing practice and training were at high level. Thecompetencies of administrative process, marketing, supporting of primary health care,using contemporary technology was at middle level while the competencies ofacademic and research was at low level. 2. The personal background, in terms of age, working experiences, in nursedirector and training for nurse directors were no significant with theentire competencies at level of .05 3. The personal background in educational level was significant with the entirecompetencies at significant level of .05 4. The personal trait was positively correlated with the entire competencies atsignificant level of .05 5. The workplace environment, in terms of organizational characteristic,opportunity in performing competence and having preceptor were positively correlatedwith the entire competencies at significant level of .05 6. The workplace environment, in terms of hospital size and advancement incareer ladder were no significant with the entire competencies at significant levelof .05