Kitaro Nishida, a Japanese philosopher, is highly regarded as a philosopher who constructed an original system of philosophy by thinking deeply with Zen and foreign thought. His philosophy is called Nishida-Tetsugaku inclusively because it includes epistemology, metaphysics, ethics, aesthetics, the philosophy of religion, and so on. In this article, I will deal with koui-teki-tyokkan, which is the core of Nishida’s later philosophy. Generally speaking, active action or koui (doing) is opposite to passive action or tyokkan (intuition). However, Nishida says that “doing” is intuition, and intuition is “doing.