The article is devoted to studying the peculiarities of life scenarios of representatives of various professions. The article analyses the scenario theory explaining the process of choosing a profession and professional behaviour of a person. The author points out that a well- chosen life path determines a person’s social value. The theoretical aspects of the concept of “life scenario” are considered in the article from the perspective of transactional analysis. The author associates this concept with other similar psychological categories in various studies. To prove the hypothesis about the existence of connection between life scenario features and professional self-determination, the author invited representatives of two professions to participate in the empirical study: real estate agents and IT technicians. The author selected appropriate diagnostic tools. The empirical study of the life scenarios of representatives of two professions confirmed the hypothesis put forward by the author. The formed life scenario in childhood receives its further development and influences the professional life path of the individual.