Objective: To study the intervention effect of music therapy in the treatment of childrens autism and observe the clinical effect of the therapy in improving the attention,social communication,and sensibility and emotion of the children with autism.Methods: 30 cases of children with autism from 2008 to 2009,come to outpatient of Nanhai Obstetrics and Pediatric Hospital Affiliated to Guangzhou University of Chinese Medicine,who answered for American DSMIV autism diagnosis were chosen.There are 26 male cases and 4 female cases in this group.8 cases aged from 3 to 7 years old,22 cases aged from 1 to 3 years old.10 cases had cerebral anoxia history during neonatal perinatal.20 cases had no reasons.Patients were treated with music therapy,by way of passive listening,active participation,improvisation and relaxation suggestion,6 times a week,30~35 min each time,running for three weeks and then resting for 10 d,60 times as a course of treatment.Compared the attention,social communication,emotion and sensibility of children with autism before,process and after music therapy.The behavioral development,musical development and emotional development of the 30 cases of children with autism before,process and after music therapy were graded and analyzed with the method of paired-samples T-tests.Results: The grades of the behavioral development,musical development and emotional development of children with autism after music therapy treatment were improved comparing to those before the treatment.The grades in the course of treatment were improved comparing to those before.The grades after treatment were improved comparing to those in the course of treatment.There were no adverse reactions in the course of treatment.The grades of the behavioral development before treatment was 18.80±5.21,in the course of treatment was 21.13 ±5.45,after the treatment was 25.33±5.64; The grades of the musical development before treatment was 8.87±3.18,in the course of treatment was 12.50±3.51,after the treatment was 19.23±4.94; The grades of the emotional development before participation was 5.50±4.33,in the participation was 10.20±4.24,after the participation was 15.13±4.08,before refuse participation was-8.27±1.72,refusing participation was-5.40±1.91,after refuse participation was-2.07±1.70; The differences of each corresponding level before and after treatment were highly statistically significant(p<0.05).Conclusion: Music therapy for autistic children can extend their attention time and span,increase their eye contact,improve their language abilities,reduce stereotyped behaviors and also mobilize their positive emotions Through the music,music therapy can gradually walk int0 children soul as a free communication medium: first,music can directly open the close emotions of children.music perception experience can ignore the language expression,to meet nonverbal self-expression needs of children with autism; second,children will pay attention to communicate with music related person after being familiar with music; third,children found self-confidence and a satisfactory method to express themselves in music and strengthen it,applied to personal communications.Therefore it improved the autistic childrens social communication skills.