PURPOSE: This study was performed to analyze effects of the power and empowerment on job satisfaction and organizational commitment. This study was based on the Kanter's theory of organizational empowerment. METHOD: A predictive, non-experimental design was used to test the model in a sample of 688 nurses working in 7 university hospitals that have over 500 beds in Seoul, Kyunggi and Kangwon provinces. The data were collected from December, 2003 to January, 2004. It was analyzed with descriptive statistics and Pearson correlation of SPSS and with path analysis of LISREL. RESULT: The formal and informal power had direct effects on empowerment. Formal power also had direct effects on informal power. Empowerment had direct effects on job satisfaction and organizational commitment. Organizational commitment had direct effects on job satisfaction. There was positive effects in all of the variables. CONCLUSION: The positive changes show on personal behaviors and attitudes when the nurses who have formal and informal power are empowered. These findings would be important resource to nurse administrators for clinical implication.