Prevalence of children with developmental disabilities has increased the need for a variety of educational and therapeutic interventions for children in the study of the subject has increased according to the load. in this paper, the review of the developmental disability characteristics and teaching methods are based on this proposal of realistic experimental serious game contents using AAC(Augmentative and Alternative Communication) method because we make up for the conventional interventions and increase participation and motivation in learning. In this paper, we improve the area said to be the motivation and commitment to develop the content by using a realistic experience for users experiencing at present a pervasive developmental disorder of language development in the paper. In particular, we shows the effectiveness of the improved speech area through the use of this serious game content through real experiments with children with developmental disabilities.