In preceding historical studies on the relation of childbirth and the state in modern Japan, the transformation of the institution and the measures about midwives, or the legal preparation for maternal-child health has been focused on. In this paper, the writer has attempted to show the modernization in childbirth by educational activity for motherhood, especially by the "Aiiku-son" (Aiiku village) project. The project started from 1936 in order to diminish the infant mortality rate all over the country. It was promoted by the Imperial Gift Foundation "Aiiku-kai" (Aiiku association), which was established for promoting education, health, and care of children and mothers in 1934. This paper has pointed out the following facts. Firstly, the p...