The current study aimed to improve some of the social use of language skills for children with Down syndrome through a training program based on the strategy of learning using peers, and to identify the extent of the continuity of the training program used in improving the social use of language skills for children with Down syndrome, where the researcher selected a sample consisting of (18) male and female children with simple Down syndrome who are enrolled in Awladna Charitable Nursery in Kafr Abu Hussein Sharqia, their ages range from (6-9) years, they were divided into two equal groups, the first of which was an experimental group consisting of (6) children with mild intellectual disabilities, (2 females, 4 males), mean chronological age (6.58), and standard deviation (1,020), and (6) normal children (peers) of the same chronological age, and the second is a control group consisting of (6) children with intellectual disabilities (3). females, 3 males), average age (6.58), standard deviation (0.801), and IQ from (50-70) degrees. Muhammad, and others, 2011)., and the measure of social use of the language prepared by (Iman Fouad Kashif, and Hala Abu Al-Magd Abdel Hafeez, 2021), and the training program based on the strategy of learning using peers (prepared by the researcher), and the results reached The study indicated the effectiveness of a training program based on peer learning strategy in developing some social language use skills among children with Down syndrome. key words: Children with Down syndrome, social use of language, peer learning strategy..