This research was conducted with the aim of teaching the effectiveness of the behavior management program to parents on the challenging behaviors of high-functioning autism spectrum students. The statistical population of the research is30parents of 7-10year old students in Shiraz with high functioning autism spectrum in 1402, who were selected by purposeful sampling method and randomly divided into two groups of 15people, test and control, and both groups First, the subject was evaluated(pre-test) and after the implementation of the program, the experimental group was evaluated (post-test). The research tools included challenging behaviors questionnaire (RSCB). Data were analyzed by multivariate covariance analysis using SPSS-24 software. The findings of the research showed that the dimensions of challenging behaviors of autistic children in the two experimental and control groups are at a significant level in the post-test stage, in other words, behavior management training for parents has a significant effect on the dimensions of challenging behaviors of autistic children with high performance. has(P<0.05). As a result, the scores of the experimental group in the dimensions of challenging behaviors decreased in the post-test stage. Therefore, the training of parents' behavior management based on cognitive-behavioral basis has been effective in reducing the dimensions of children's challenging behaviors. According to the obtained results, it is possible to teach behavior management to parents in order to reduce Challenging behaviors and anxiety of children with high-functioning autistic disorder, as an effective intervention method, found benefits and reduced the challenging behaviors of children.