Present article is the short survey of the most important points of children s cerebral-organic defficiency including definition, historical essay, wide-spreading statistics, classifications, peculiarities of clinical manifestations, dinamics, diagnostic, principles of the treatment. Cerebral-organic patology strictly speaking and in the combination with genetic and environmental factors is the basis of rise of the absolutely all mental disorders as just brain disfunction is the substratum for the appearance of psichopatological alterations which dictates their regularities of personal development and individual reacting.