Anorexia nervosa is not uncommon in adult women. The principles of treatment for this disease: first of all, malnutrition should be corrected, while psychotherapy and medication should be carried out at the same time or later. At present, scholars and experts believe that a combination of multiple treatment modalities applied in combination is the best treatment for anorexia nervosa. And the treatment of the disease is generally divided into two stages, the first one is to restore weight and save life, which is the most important because life is priceless. The second stage is to improve the psychological condition of patients with anorexia nervosa and to prevent the relapse of anorexia nervosa. In clinical practice, antidepressants such as fluoxetine and escitalopram, anti-anxiety drugs such as buspirone and tandospirone and a small number of antipsychotics such as sulpiride and olanzapine are mostly used to improve patients’ depressive mood, anxiety, obsessive-compulsive symptoms and somatic disorders.