This article reviews domestic and foreign studies on cognitive behavioral therapy techniques in treating cognitive disorders in former COVID-19 patients. Coronavirus-induced cognitive disorders include damage to the nervous system as a result of respiratory distress syndrome, cytokine storm, cerebral vascular thrombosis, direct exposure to SARS-Cov2, and inadequate immune response. Concomitant mental illnesses include autistic disorders, dementia, cognitive decline, eating disorders, suicidal behavior, anxiety, depression, post-traumatic stress, insomnia, etc. Diagnostic methods usually take into account a complex violation of mental activities, e.g., short memory span, attention deficiency, slow thinking, and various affective disorders. As a result, diagnostic methods can be divided into several areas: neuropsychological diagnostics of cognitive functions (MMSE, MOCA, FAB), identification of inadequate attitudes and behavior (WCQ, SPB, DAS), identification of violations of daily activity (The Barthel Scale), identification of psychological and psychiatric issues (Hospital Anxiety and Depression Scale, State-Trait Anxiety Inventory, Hamilton Rating Scale for Depression). Psychological care for former COVID-19 patients relies on some basic principles. Cognitive behavioral psychotherapy techniques aim at correcting cognitive distortions, teaching relaxation and self-regulation, improving problem-solving skills, and restoring cognitive functions.