MECT treatment is known as Modified Electroconvulsive Therapy in Chinese and can be used for depression treatment, especially for those with suicidal or self-injurious behavior or refractory depression. There is no data to prove how long MECT treatment for depression will cause specific amnesia, but some patients may experience transient memory loss, disorientation, mild disorders of consciousness, confusion, or even inability to find their own bed after awakening, which can generally be recovered very quickly, no later than 6 months. After the patient loses consciousness through the use of intravenous anesthetics and muscle relaxants, a certain amount of electric current is applied to the patient’s head, which can cause cortical epileptiform discharges without generalized convulsions, thus achieving the purpose of treating the disease. This treatment has good efficacy and safety in clinical practice, but it is not recommended for patients with severe heart disease, active hemorrhage, seizures, and other relative contraindications that meet clinical regulations. There are individual differences in the course of electroconvulsive therapy, and the frequency of treatment, treatment effect and prognosis need to be judged in the context of the patient’s own situation. The disadvantage of electroconvulsive therapy is the short maintenance time, so when this treatment is performed, it is usually necessary to combine it with antidepressant drugs to avoid the recurrence of depressive symptoms after the cessation of MECT treatment.