(GDD) is a special type of intellectual retardation in children, Which is characterized by a disturbance in the normal pace of mental development of the child. Children with generalized developmental disorder (GDD) have difficulties mastering the primary school curriculum but cannot be classified as individuals with intellectual disabilities. where they demonstrate sufficient ability to generalize within their range of knowledge, And they have a wide area of near development or the area adjacent to growth. The phenomenon of GDD is heterogeneous both in the pathogenesis of disease and in the structure of the imbalance. Depending on the causes that cause developmental delay, GDD with structural, physical, psychological and organic-cerebral origins (K. Lebedinskaya) can be distinguished. GDD of structural origin is determined by genetic and familial makeup. GDD of somatic origin is the result of prolonged and severe diseases in early childhood. GDD of psychological origin occurs due to a psychological factor – unfavorable breeding conditions. GDD of cerebral organic origin is caused by a severe and persistent local disorder in the maturation of the brain structure. This is the most dangerous type of GDD.