本文試圖在二十世紀三一神學復興的背景下，以三一論和本體論之互動關係為視角，討論當代東正教神學家濟宙拉斯的位格本體論，尤其是其對位格和人的理解對當代神學和哲學的意義。文章首先介紹濟宙拉斯三一神學發展的語境；繼而考查他如何從卡帕多西亞教父的三一神學發展出一種位格本體論以及相應的人格概念；最後結合對其核心觀點的相關爭論，檢視他對希臘教父的解讀及其從神聖位格到人格的類比是否成立，並針對其理論前設和神學方法作出自己的反思和批評。

Departing from the perspective of the relationship between the doctrine of the Trinity and ontology in the context of the 20thcentury revival of Trinitarian theology, this paper attempts to explore John Zizioulas’ ontology of personhood with a focus on the idea of “person” and its implication for contemporary theology and philosophy. Accordingly, the paper first introduces the background of Zizioulas’ Trinitarin theology, and then investigates how Zizioulas develops an ontology of personhood from Cappadocian fathers’ Trinitarin theology and how he understands the being of humankind. Finally, the paper examines some controversy about his reading on Cappadocian fathers to see whether this reading and the following analogy between divine person and human person is justified, together with a critical reflection on the presuppositions and the method of Zizioulas’ theology.