Alexithymia has many effects on schizophrenia， including emotion， executive function， mental symptoms and coping styles. It will lead to interpersonal communication difficulties and social function decline， and affect the rehabilitation of patients. It has been found that antipsychotics， psychotherapy and rehabilitation training are effective treatments for schizophrenic patients with alexithymia. At present， there are relatively few domestic studies on schizophrenic patients with alexithymia， and some of the results are different because of different control conditions. Research needs to be further improved in the future.