This article investigates the problem of psychological determinants of professional self-determination, in particular, temperament and self-esteem. The purpose of the study is to determine the significance of these factors in the process of professional self-determination of schoolchildren. To achieve the goal, the following research methods were used: literature analysis of available sources, testing to assess temperament and self-esteem, as well as data analysis methods.

The results of the study show that temperament and self-esteem play a significant role in the formation of professional preferences of schoolchildren and other people. Professional preferences depend on individual psychological characteristics of the personality, conditioned by the type of temperament. Schoolchildren with an adequate level of self-esteem demonstrate a wider range of professional orientations, while schoolchildren with low self-esteem tend to choose traditional and social professions, thus limiting their opportunities.

Based on the obtained data, the article offers recommendations for improving the process of professional self-determination based on an integrated approach to two key psychological determinants: the influence of temperament and the development of self-esteem. This approach will allow to solve more effectively the problems faced by high school students when choosing a future profession, ensuring their successful professional orientation