Play is activity that is self-chosen and self-directed, intrinsically motivated and imaginative in which child can express its needs, feelings, thoughts and difficulties. Board (social) games have significant role in child's development. They encourage concentration, logical thinking, communication, they teach children to follow rules, make decisions, win and defeat, and encourage the development of empathy that is key to developing a healthy relationship with the environment. Children with autism spectrum disorder (ASD) experience difficulties in emocional regulation during the play when they have to follow the rules and when they experience defeat. The aim of this study is to evaluate the effect of social stories on participation in social games of boy with autism spectrum disorder and to note changes in emotional regulation of the boy during social (bord) games with peers and / or adults. The study should answer questions such as: Does the social story have an impact on the participation of boy in the bord games? Will there be any progress in emotional regulation when playing games where there is a chance of winning or defeating? Is there a generalization of emotional regulation in other contexts and partners in the game? The program was conducted in a family home of the boy in structured situations lasting 10-30 minutes once a week through twelve meetings. Data were collected during initial evaluation, program implementation, final evaluation and through interview with mother of the boy. Analysis of the data a conclusion has been made that suggests that the created social story is effective because unwanted behaviors in boy were completely reduced or disappeared.