This article focuses on the system of ”amiable composition”, which is also known as the most special feature in international arbitration. However, the conception of ”amiable composition” is still abstract. The author therefore tries to provide a concrete criterion about this issue to Taiwanese legal practitioners by comparing the judgments of Taiwanese court with the French legal theories and practical materials. The author also finds that the meaning of amiable composition should be different under the international arbitration with respect to the domestic arbitration field.