Children autism is a Pervasive Developmental Disorders.The autistic children have emotional, language, and communicational disorders.So intervention to autistic children is of much importance theoretically and practically. The research will take sand-play therapy to intervence an autistic boy.

Sand-play therapy is a process during the therapy period children can play sand and miniatures in "free and protected" space provided by therapist. Sand-play makes children express their emotion ，inspire their imagination and arouse their self-healing potential.

The case study discussed these issues by sand-play therapy with a 7-year-old autistic boy. The therapy had processed for 6months，and included 28sessions.Every week will take two times，Each time had taken one hour .According to the observations and analyses of the process of the therapy ，we found the sand-play to the autistic boy achieved some effects to a certain extent:

The autistic boy become larger degree of digging and moving sand，and the boy’s sand-play contain more imaginative and situational elements.
The improvement of social communication consistent in the appearance of eye-touch and growing accustomed to the children’s activities.
The improvement of language include more vocabulary quantity，more active language and using the conception of “you” “I”.
The improvement of cognition well done in the mission. The autistic boy’s sand-play which has long course of the treatment and slow improvement has undergone secular deposition.

According to the intervention and therapy to the boy，who have treatment for six months，two times a week，the case have made some provements，but we need make more efforts to the basical and drastical changes.

Key Words: Autistism; Sand-play Therapy; Case Study