The function of preschoolers communication by preschoolers in relation to visiting each other is examined. Their activities during the 2-year preschool education were recorded on videotape. Studying their chit-chat on the tape, we identified the reference to visiting each other. Date were analyzed from three aspects, that is, a contextual factor, topic-making pattern, and human relations in preschool. The preschoolers managed to visit each other in various contexts in their free time. By analyzing topic-making patterns, we found that their reference meant a lot more than simply making arrangements for visiting. More often than not, the reference was made in order to show close relations to their peers for instance. It was also used as threat. The reference to visiting each other was influenced by human relations in the kindergarten. The results suggest that the reference to visiting each other is important for preschoolers to maintain good peer relations.