Abstract
Music therapy conferences were held on patients with autistic disorder. Case 1 was an 18-year-old girl and case 2 was a 10-year-old boy. The purpose of music therapy was emotional stability in case 1 and promotion of language development in case 2. We discussed their characteristic behaviors such as reaction to a mirror, imitation, obsessive attitude, self-injury, and the way to react these problems in music therapy sessions.