The purpose of this study is to extend the theoretical model of organizational politics in different contextual situations by using cross-level analytical framework. In accordance with the social exchange perspective, this study draws on a reciprocated subjective cognitive state that existed between the employee and workplace (psychological contract breach) as a mediator to connect the relationship between group political climate and turnover intention. Additionally, this research also employed the situational strength perspective by introducing a group characteristic variable (group interaction) to investigate its moderating effect on the relationship between group political climate, psychological contract breach and turnover intention. Data were collected from 56 work groups consisted of 750 work group members who provided the information about group political climate, psychological contract breach, turnover intention, group interaction and demographic variables. Hierarchical linear modeling techniques were applied to test the full model. The results reveal that individual employees¡¦ psychological contract breach partially mediate the relationship between group political climate and turnover intention. Further, group interaction moderates the mediated relationship between group political climate, psychological contract breach, and individual employees¡¦ turnover intention. Lastly, groups with high degree of group interaction could lessen their employees¡¦ turnover intention induced by group political climate.