Kazuo Ohno is considered as a dancer of improvisation, and it is not clear what kind of methods he used for creating his butoh. This is because Ohno did not establish his choreographic language or systematize his methods. However, the notations or notes for creation called “butoh-fu” are an important object for revealing the secrets of his butoh because he wrote them each time he created a new performance. How did these notes work in his dance, and what kind of process was there between notes and his movements? I aim to find his methodology from this relation of words and movements by analyzing his process of making pieces.