In China, the management of severe mental disorders incorporates six major categories of serious mental illnesses into clinical management, which are also the more common serious mental illnesses: the first, schizophrenia, which is the serious mental illness with the highest clinical incidence. The second category, bipolar disorder, includes manic episodes of bipolar disorder, or depressive episodes of bipolar disorder. The third category, paranoid psychotic disorder, is relatively rare. The fourth category, schizoaffective psychiatric disorder. The fifth category, mental disorders due to epilepsy, does not include all patients with epilepsy and refers to patients with epilepsy with resulting mental disorders. The sixth category, patients with severe mental retardation accompanied by mental disorders.