In this paper, I shall discuss Nishida’s 西田 philosophy of body from the aspects of acting intuition, rhythm, and situatedness. Pure experience used to be the starting point of Nishida’s early philosophy. In his later philosophy, however, the keyword in Nishida’s philosophy is no longer “experience” but “acting.” It is neither “I think therefore I am” nor “I will therefore I am,” but “I act therefore I am.” As the organ of acting intuition, body is one of the most important philosophical concepts in Nishida’s later philosophy. I shall interpret the philosophy of acting intuition as a phenomenology of rhythm. Also, I shall argue that acting intuition can be understood as a situated action. For Nishida, our body is historical: I am not a knowing body, but an acting body.