This research examines the causal relationships among organizational culture, leadership(transformational, transactional), and organizational commitment by way of case study which is focusing a local government(Chonnam Provincial Office) in South Korea. Using a sample of 700 local government employees, this study analyses alternative hypotheses centering around job-related behavior variables mentioned above. To sum up this study briefly is as follows. First, group culture is positively related to transformational leadership. Then, transformational leadership is positively related to transactional leadership. Finally, transactional leadership is positively related to organizational commitment. In comparative analysis between the two sexes, this study clarifies the distinction between male and female. In the case of male, this research finds group culture is positively related to transformational leadership, transformational leadership positively related to transactional leadership, and transactional leadership positively related to organizational commitment. However, in the case of female, this study shows path analysis among group culture, transformational leadership, and transactional leadership is statistically significant. This study suggests the highest rank manager design thorough management strategy of organization having regard to male, female civil servant, respectively.