The article addresses the communication development of pre-adolescents with multiple and severe disabilities. Communication disorders negatively affect the development of mental processes and socialization. In the educational process for this category of children, it is necessary to apply alternative and augmentative communication. On the other hand, developing communication skills will decrease the frequency of behavioural disorders. The aim of the research was to identify the possibilities of developing communication skills in pre-adolescents with multiple and severe disabilities in the educational institution. To this end, we have assessed specialists, parents and preadolescents. We trained teachers and parents and developed programmes on developing communication skills.