Since 2004, the author has been providing community psychological support for Japanese-Brazilian living in Japan. The purposes of this study were to investigate the association of school adaptation with parent-child relationship, and that of school adaptation with community participation. 60 Japanese-Brazilian families and 600 Japanese families participated in this questionnaire survey. Results were as follows: (a) Japanese-Brazilian children felt that parents were overprotective, (b) there were more parental expectation of children in Japanese-Brazilian than in the Japanese, (c) school adaptation of Japanese-Brazilian children were related to their recognition of parental love and their understanding of parental expectations, and (d) parents' participations in community and communication with Japanese parents were also related to school adaptation of Japanese-Brazilian children. These results were discussed in framework of community psychological supporting.