Abstract. The article discusses the results of the study on social and communicative skills of adolescents with compensated difficulties in mental development. The relevance of the study is due to the steady increase in the number of children with various mental development delays, who, after appropriate correctional assistance, more or less successfully adapt to the conditions of the educational space, solving development problems at subsequent stages of life. A poor knowledge of these “delayed effects” of mental development difficulties in domestic psychology significantly limits the possibilities of providing adequate psychological assistance to ado lescents of the above category. At the same time, in adolescence, integration into the system of communication and social interaction with others is considered as one of the most important tasks of personality development. It was revealed that the difficulty of mental development in childhood and its subsequent compensation have a significant impact on social behaviour in late adolescence.