The article shows the role of the attachment system (child-mother interactions) in development of a wide spectrum of individual personality characteristics. Emo tional attachment of the child to mother is considered as a complicated system of internal regulation and a basis of typology of mental development. Results of a series of empirical studies show the connection between the type of attachment, formed at the early stages of child development, and characteristics of his/her au tonomy, self-concept, self-esteem and empathy in preschool and middle childhood.