This study is an attempt to identify the possibility of convergence between multidisciplinary studies by newly studying the relationship-based leadership of Confucius in the aspect of modern leadership. This study aims at finding a new type of the oriental leadership model, reflecting the latest modern leadership theory. Confucius's relationship-based leadership is one of the oriental leadership models, consisting of Sijung (時中, the flexibility with principle in behavior) as the relationship principle and Ren (仁, benevolence) as the core competence. In this leadership, it is the best virtue to establish the identity of leader and his or her solicitude for the members, based on the principle Sijung. There is basic prerequisite of morality, the ethical aspect, in the relationship between leader and the rest of members. Moreover, the typical leader in this type makes the members understand the situational variations and take proper actions. It not only suggests the theoretical ground to solve challenges in the situational leadership and the authentic leadership, which are the latest theory about modern leadership, but has the significant influence on recent trend in leadership study focusing on the morality and ethics.