The article covers in detail the problems of diagnosis and treatment of cognitive impairment in children with cerebral palsy. Diagnosis of cognitive disorders, cerebral palsy is a challenging task, due to various combinations of these disorders with physical, speech and sensory disorders, which requires a differentiated approach. The authors have developed a differential-diagnostic criteria to distinguish between impaired mental function and mental retardation with cerebral palsy, as well as the proposed comprehensive system of rehabilitation of cognitive disorders, including medical and social, and psychological-pedagogical correction, which is aimed at compensating for cognitive deficits, the formation of mental functions, and the restoration of the mechanisms of social integration of children with cerebral palsy.