Henri Wallon (1879-1962) is a French psychiatrist and a developmental psychologist. He created a unique developmental theory that emphasizes the relationship between posture and emotion through his clinical approach to handicapped children. His theory was accepted not only in the field of Japanese psychology but also in the field of Japanese Post-War pedagogy. This study examined the characteristics of the acceptance of Wallon’s developmental theory in the field of Japanese Post-War pedagogy. In conducting the research, I focused on the “developmental pedagogy” conceived by Teruhisa Horio. Horio is a representative of Post-War pedagogy, and his “developmental pedagogy” is an educational theory that became very famous in the 1970s and 1980s. Horio’s “developmental pedagogy” embraced developmental psychology, mainly Wallon and Jean Piaget (1896-1980). Therefore, I focused on “developmental pedagogy” and examined the characteristics of Wallon’s reception in Post-War pedagogy. As a result, the following points were clarified. First, the findings of Wallon’s theory, which Horio emphasized, is the concept of developmental stages. Because Horio used Wallon’s theory of developmental stages in combination with the theories of Piaget and others, Wallon was treated as one of the static developmental stages. Second, Wallon’s developmental theory was not fully accepted by Horio. This was because Horio did not fully understand Wallon’s view of the body. It was the basis of his developmental theory and constituted the framework of his developmental theory. However, Horio’s focus was on showing Wallon’s view as a fragment of information to be presented according to the developmental stage he was discussing. As a result, Wallon’s theory emphasized aspects of developmental stage theory, and the rest was only shown as pieces of information.