Summary: The authors identified new aspects of socio-genetical determination of development of personality of youth: the relationship of socialization and individualization, the formation of tumors or other process of social regulation and of self-determination of personality development at different stages of its formation; argue that the system of determinants of personality development today is much expanded and became more complicated: increased the number of its levels and dimensions, has increased the variety of relationships between causes, conditions, factors, preconditions.
Key words: the social Genesis, development, personality determinants.