The article analyzes the various aspects of senior pupils personal development problems, which can lead to addictive behavior: a general undifferentiated rejection of himself in his body, the personal communicative and social quality, internal unavailability to make the choice of multiple social roles, strong group membership, low self-esteem. Discusses psychological and pedagogical conditions of senior pupils identity formation that support prevention of addictive behavior, such as the expansion of the repertoire of social roles, assist in the development of self-determination, psychological and pedagogical support in the search for personal meaning, the organization of group interaction.