This research explores the relationship between transversal competencies and the acquisition of linguistic skills, and is therefore entitled: "Heteroremediation of transversal competencies and acquisition of linguistic skills in school-age children with autism at the CESAM CRERA Yaoundé center". Our starting point is the observation that the acquisition of language skills in children with autism poses a problem, since most of these children have difficulty expressing themselves, and this hinders both their development and their relations with others. The aim of this study is to determine the importance of heteroremediation of transversal skills on the acquisition of language skills in school-age children with autism. The problem is therefore as follows: how can we help a child with autism to improve his or her language skills by further developing less-affected cognitive skills to use them as a support for language development?