Abstract Communication has a relationship with language skills, it is impossible for a human being to communicate if he does not have language skills or language skills. Language is a means of communication that gives symbols and meaning to thoughts and feelings to convey messages or information to others, but children with autism have difficulty in expressive language communication. This happened to children with autism in one of the special schools in the city of Sidoarjo who felt it was necessary to intervene with fading stimulus to reduce expressive language and behavior disorders in children with autism. Identification of the subject, The subject in this study is a boy aged 12 years who has autistic spectrum disorder with reference to DSM V. The research instrument used was a behavior tally observation technique and a rating scale to measure the behavior of autistic children who had expressive language barriers. Observation guidelines were prepared based on the characteristics of autism contained in DSM V. The research method used a quantitative approach with experimental methods and used an experimental single case design. Experiments were carried out by giving Fading intervention to autism subjects who had behavioral and expressive language disorders. The intervention was carried out in 5 sessions (1-2 hours per session, depending on the response the subject gave) over a period of 10 days. So that it can be concluded. Based on the results of the descriptive analysis, it can be concluded that the fading stimulus can provide a positive response to children with autism who experience expressive language behavior disorders. In this study, after being given the intervention for approximately 10 days, the subjects showed a decrease. Suggestions This research has limitations in its implementation, namely the teacher is less cooperative in conducting the intervention process. Even so, this study showed positive changes experienced by the subjects after the intervention for 5 sessions. Therefore, it can be suggested to parents/teachers to apply stimulus fading strategies to children with autism. Suggestions This research has limitations in its implementation, namely the teacher is less cooperative in conducting the intervention process. Even so, this study showed positive changes experienced by the subjects after the intervention for 5 sessions. Therefore, it can be suggested to parents/teachers to apply fading stimulus strategies to children with autism. Suggestions This research has limitations in its implementation, namely the teacher is less cooperative in conducting the intervention process. Even so, this study showed positive changes experienced by the subjects after the intervention for 5 sessions. Therefore, it can be suggested to parents/teachers to apply stimulus fading strategies to children with autism.

Keywords: Autism, PECS, and Expressive Language