The article presents the results of theoretical and empirical research of creative activity and its role in the formation of young adult personality’s self-actualization. Application of psycho-diagnostic toolset («Sociometry» method, «Intellectual liability» test modified by S. N. Kostromina, A. Ya. Varg’s and V. V. Stolin’s method for diagnostics of parents’ attitude, method for diagnosing interpersonal relations by T. Leary) on a sample of young adults that are defined by a level of creative activity allowed to evidentiate that young adults that demonstrate significant creative activity occupy a positive and stable position in the school collective, and are respected by their peers. The study points out their intellectual mobility (quick reaction to suggested tasks, ability to be oriented towards its conditions, ability for intensive intellectual workloads, good attention span, ability to differentiate between attributes); the dominant style of family upbringing in families of young adults that demonstrate creative activity is the democratic style.