In this study, we developed a disability awareness program for brothers and sisters of children with disabilities (hereafter referred to as siblings) and examined its effectiveness at promoting family relationships. During sessions of the program, siblings created “An Introduction to My Family” album, and parents also participated by adding their comments to the albums. Participants were seven siblings of brothers with autistic spectrum disorder and/or an intellectual disability. The program consisted of six two-hour sessions that took place every two weeks, and each session began with a game to break the ice. Afterwards, participants learned about the characteristics of their brothers' disabilities, they discussed problems associated with those disabilities, and they examined ways to cope with them. Siblings also shared personal information about themselves, their families, and friends as well as their impressions of the overall discussions, which were expressed through writing and drawings in the albums. After each session, the siblings presented the albums to their parents (at home), who then added comments. To determine the program's effectiveness, the siblings were interviewed and asked to complete the same questionnaire before and after the program. In addition, the siblings' mothers were interviewed and questioned about themselves and their relationship within the family. Analysis of the parentchild interaction represented in the albums and the data from the questionnaires revealed that most siblings had greater expectations of receiving informal support from their mothers, and some mothers reported that their perceptions of their healthy children had changed, resulting in enhanced communication and improved relationships between the parents and siblings over the course of the program.