Abstract
This study aimed to examine the childcare theory of Yoshiko Kunugi, who was involved in the preparation of Hoiku Yoryo (National Curriculum Standards for Early Childhood Education) published in 1948. The concept of childhood education environment discussed in her book published in 1944 was also reflected in Hoiku Yoryo. This study reviewed the Kunugi’s childcare theory based on her publication and clarified her perspective on childcare that was established through her practice as a nursery teacher and experience from studying in the United States. Her activities were acknowledged in the Civil Information and Education Conference report by Helen Heffernan of The General Headquarters/The Supreme Commander for the Allied Powers during the occupation; Kunugi, who served as an interpreter and provided a good understanding of Heffernan, had her visionary childcare theory and played a significant role during the postwar education reform period of Japan.