本文从西方本体论和佛教体用论两个角度来考察牟宗三先生《心体与性体》中的“体”这一概念。通过这两种维度的考察,作者指出这一概念重在强调活动性的、动态性的道德实践,而不在静态的道德行为。而这也透显出牟宗三先生主张的“道德的形上学”的“实践哲学”特征来。 This article examines the concept of “body” in Mou Zongsan’s “body and body” from the perspectives of Western ontology and Buddhist body use. By examining these two dimensions, the author points out that the concept focuses on active, dynamic moral practices rather than static moral behavior. This also shows the characteristic of “practical philosophy” of “moral metaphysics” advocated by Mou Zongsan.