This purpose of this study was to investigate Music-making experience for 6 year old boy with Asperger Disorder. The individual music therapy sessions were conducted 4 months by a primary therapist and two co-therapists. All the session were recorded on video tapes. Then, these therapists reviewed each video tape and session logs, and chose the meaningful experiences of music therapy. The researcher as a primary therapist analyzed the qualitative data. As a result, it has been founded that Music-making program facilitated empathy capacity\'s development, improved social interaction, decreased autistic behavior, showed his emotions. Therefore, Music-making is supposed to be a useful vehicle for helping the development of social interaction on children with Asperger Disorder.