At present, the international treatment of antipsychotics is divided into nine categories of 41 kinds of drugs, of which the common ones are as follows: phenothiazines are mainly based on chlorpromazine, thioxanthenes are mainly based on chlorprothixene, butyrylbenzenes are mainly based on haloperidol, and benzamides are mainly based on sulpiride. Dibenzoxazepine class is mainly based on clozapine, each class of drugs have some of its advantages and disadvantages, but the specific how to choose should be based on the patient’s condition to the clinician to choose, and can not just self-medication.