Agricultural Economics Society of Japan was established in 1924. Since then, this society has treated the subject of research problems in all areas of agriculture and rural areas. Expanding the research areas, we established research groups for the study of associated fields to engage in a specialized study of specific topics. These groups have developed into academic societies in their own right. In this paper, first of all, we analyze the positioning of the Agricultural Economics Society of Japan. Therefore, we take up several associated academic societies and we consider the interaction of members of these societies and members of the Agricultural Economics Society of Japan. Second, we examine issues and the current status of activities concerning the council of academic societies related to agricultural economics. Finally, we analyze the expansion and interdisciplinary research of agricultural economics.