The article examines the issues of students' reflexivity, the impact of the reflexivity on the educational process and psychological health, the importance of its development. The purpose of the article is the theoretical and empirical study of students' reflexivity through its expression in various linguistic markers, the importance of reflexivity in the personal and potential professional development of students. The research methodology and its algorithm were selected due to the purpose of the study. Experimental work included a complex psychological and pedagogical experiment, diagnosing the stated parameters and their subsequent statistical analysis. The study of students' reflexivity was carried out on the basis of the Institute of Foreign Languages of the Federal State Autonomous Educational Institution of Higher Education "The Peoples' Friendship University of Russia "(RUDN). Research sampling: reports (essays) of the 1-4 year students. The target group consisted of 98 students, divided into seven subgroups. The results of the study allowed us to conclude that there is a significant interdependence between linguistic markers and students' reflexivity. Psychological health is a necessary and important condition for the full development of a personality. On the one hand, it ensures the adequate fulfillment of social roles, on the other hand, it creates the possibility of continuous personal and professional development throughout life. Supporting psychological health is one of the urgent tasks in the young age, the most important stage in the formation of a personality. Reflexivity of students, appearing in the process of consulting or training work, manifests itself, first of all, in speech processes. Group reflexivity, in turn, is the main method of psychological training, since it helps to comprehend and integrate the ongoing experience.