The problem of emotional distress of children and adolescents is one of the central problems that attracts the attention of parents, teachers and psychologists. A vivid manifestation of the emotional disadvantage of adolescents is a depressive state before passing the CSE and the USE.It is worth noting that depression in adolescents is not just a bad mood, but a serious emotional disorder that hinders its development, affects well-being and quality of life. Modern scientists, such as Gatsonis & Covacs (1989), Piug-Antich (1986), 1 D.N. Isaev (2000), in their studies of the depressed states state the facts that psychotic and endogenous forms of depression are more common for children than for adults. Brent (1993), 2 Robbins & Alessi (1985), 3 have identified the links between depression and suicidal tendencies in adolescence. In this paper, we consider the essence, causes and signs of depression in senior schoolchildren before passing the CSE