The purpose of this research relevance is evaluated using correlation analysis and multiple linear regression analysis about the actual condition of different age interaction and indoor composition by indoor play of a nursery school. Five nursery schools where the special use and environment of the room differ were chosen. All day, the situation of the life of children was observed and recorded. Children's interaction situation and the relation between indoor play, the spatial relationship in the room, a corner, and furniture and fixtures was totaled and analyzed using correlation analysis and multiple linear regression analysis. The result of analysis. Corner is a factor which induces exchange of different age. But Even if there is no corner, exchange of different age is generated. The constituent factor which is useful for exchange of the different age common to all the nursery schools was discovered.
