This study aims to clarift the features of the reformation of physical education in the Seijo elementary school from the end of Taisho Era to the beginning of Showa Era. Especially this study focuses on clarifying the influences of the study about the lower classes of Shozo Shimada(1985-1960) concerning of the reformation of physical education. The results are summarized as follows: (1)Before studying about the lower classes, Shimada insisted on organising teaching materials of physical education without harming the characteristics of physical exercises. (2)As a result of his study about them, shimada was aware of the necessity of paying attention to the characteristics of activities about children in case of crganising teaching materials of physical education.