<p>The current stage of studying depressive disorders is characterized by attention to various aspects of metacognitive functioning and the development of compact and effective psychosocial interventions, of which metacognitive training (D-MCT) is an example. <strong>The aim</strong> of this study is to provide a rationale for metacognitive interventions: to identify the correlation between the main targets of D-MCT training (perfectionism, rumination, and coping strategies) and their relationship with the severity of depression symptoms. <strong>Materials.</strong> We analyzed the data from the examination of 107 patients with depressive disorders. <strong>Results:</strong> the influence of rumination on the severity of symptoms of depression is indirect; it is mediated by perfectionist attitudes and beliefs. The influence of depression on the choice of coping strategies is also related to the expression of perfectionism and rumination, which make even conditionally constructive coping - taking responsibility - dysfunctional. <strong>Conclusions:</strong> The range of targets of metacognitive training for depressive disorders allows us to consider the mutual influence of the main dysfunctional risk factors for the occurrence and chronification of depression.</p>