本文係從「權力」的角度，研究調停者「權力」與其「角色」、「戰術」及「成功因素」之間的關係。研究發現，調停者的權力在調停過程中會經常變動，其角色之轉換也因此成為必然。當事國也根據調停者的權力大小，而對調停者的角色有不同的認知。若能操縱這些認知，或用調停者個人的特質去改變、平衡這些認知、調停乃有成功的機會。

The paper is attempted to study international mediation through the investigation of mediator’s power, and to analyze the relationship between power and mediators’ roles and tactics. After a deep investigation of several mediation cases, this author concluded that mediators’ roles, and factors such as partiality and skills that contributing to successful mediations, were determined by mediators’ power. But roles were not always mediators’ own choices, they were sometimes also “perceptions” and “interpretations” of the principal parties, judging from the mediators’ power. Since mediators’ power changed along the mediation process, their roles and tactics also changed all the time. How to manuplate these perceptions therefore became an art of mediation.