朱子的「明德注」對後儒有很大的影響，而朱子所理解的明德，是指心抑或是性理，在朱子有關討論上，有不同的說法，也引發了後儒的爭論。本文論述當代牟宗三先生的有關詮釋，又用韓國朝鮮朝晚期有關明德是心或是理的爭論來對照，表達對明德注不同的理解的各義理型態，希望通過上述的討論，證成筆者對朱子明德說的原意的理解。

Zhu Xi’s Remark of Mingde has a great influence on the later generation Confucians, and Zhu Zi's understanding of Remark of Mingde refers to the Xin or the Xing. There are different opinions on Zhu Xi's discussion, which also leads to the debate of the later generation Confucians. This paper discusses the relevant interpretations of contemporary Mr. Mou Zongsan, and compares it with the argument that Mingde is Xin or Li(principle) in the late Chosan dynasty, and expresses the different types of understanding of Remark of Mingde annotation. I hope that through the above discussion, I can prove my understanding of Zhu Xi’s Remark of Mingde's original intention.