The study aimed to reveal the effectiveness of the promoting emergence of advanced knowledge programs in developing language skills among a sample of children with an autism spectrum disorder in Oman. The study adopted the pre-experimental approach of the single experimental group with two pre- and post-measurements. 10 children with autism spectrum disorder (speakers) from (5-8) years and good mental ability were used and selected to achieve the objectives of the study. PEAK program was used and a scale for language skills was developed that consisted of (34) items distributed over two dimensions (receptive and expressive language). The validity and stability of the study tool was verified. The results of the current study showed that there were significant differences at ([alpha] = 0.05) level in favor of the post and follow-up application in the average performance of autism spectrum disorder children on the scale of language skills (receptive and expressive) attributable to the promoting emergence of advanced knowledge. The study recommended the preparation of periodic meetings and workshops for workers in the field of special education and autism spectrum disorder children in the Sultanate of Oman to learn how to employ the PEAK program in dealing with this group of children in Oman.