This thesis deals with the impact of play behavior on language development of children with autism spectrum disorder. At the beginning, the diagnosis of ASD is discussed. Afterwards the parallels between play and language development up to the third year of life, the possible deviations in ASD and the role of parents and peers as play and communication partners, are presented. Then the possibilities for linking communicative approaches with play- based measures are described. The topics are supplemented by the outline of the current state of research, on selected, topic-specific studies. As a result, a comprehensive understanding of play as a bridge to the world of language, in children with autism spectrum disorder, is to be created and the play is regarded as a helpful therapeutic tool in speech therapy. The most important findings are finally summarized and used as a guide for the derivation of a research question and the methods for the Bachelor thesis 2.