The purpose this study is to examine the effect of organizational justice on passion and pro-social service behavior. In order to verify the hypothesis, this study conducted a questionnaire survey on 230 hotel employees in 5 star, 10 hotels in Seoul. The results of the analysis are as follows. First, organizational justice has a positive(+) effect on harmonious passion. Second, harmonious passion has a positive(+) effect on prosocial service behavior in the role. Third, harmonious passion has a positive(+) effect on extra-role prosocial service behavior. It is suggested that the organizational members who are the internal customers of the hotel company have the influence of the passion on the value of the organizational justice and thus the organizational maintenance and human resources management of the hotel companies efficiently with the pro-social service behavior that can maximize their abilities.