This article presents the results of a study of the state of mental health of modern youth. The aim of the study is to diagnose the state of mental health of young people and develop recommendations aimed at strengthening this condition. Now, the problem of the health of modern youth is the direction of state work in the Republic of Kazakhstan. Research in the field of diagnostics and strengthening of mental health of modern youth will increase its competitiveness in the international market and have a positive impact on the feeling of psychological well-being of the individual. The issues of diagnosis of this condition were raised and during the theoretical analysis it was possible to draw conclusions that the study of the characteristics of personality behavior in a stressful situation is an indicator of the degree of its adaptability. As part of the diagnosis, it was revealed that a decrease in the overall level of individual performance and the degree of her initiative, motivation indicates the presence of signs of maladaptation. The correlation analysis made it possible to draw conclusions that the motivation of a person and her performance are key indicators of the state of mental health of a person, which confirms the hypothesis put forward in this study. The study participants were given recommendations on strengthening the state of mental health.