[[abstract]]The main purpose of this study is to compare the concept of “moral feeling” in the philosophical systems of Mou Tsung-san and Immanuel Kant. Firstly, we try to probe into the development of “moral feeling” in Kant’s moral philosophy, and analyze the probable origins of it and its relevant concepts, including Pietism, Leibniz-Wolffian philosophy, “Moral Sense Theory” of F. Hutcheson, C. A. Crusius’ concept of “obligation”, and J. J. Rousseau’s thought of human right. Secondly, we discuss Mou’s understanding of “moral feeling”. In Mou’s point, “moral feeling” is a kind of “Ontological feeling”. Thirdly, the fundamental difference, i.e., whether the capability of “intellectual intuition” of human being is recognized or not, between...