For postoperative delirium in 2014 the expert consensus developed by the Chinese Medical Association Anesthesia Branch. In the consensus, the main treatments for postoperative delirium are clearly stated. It is described that the aim of treatment for postoperative delirium is to provide rapid relief of clinical symptoms and to strive for the best long-term prognosis, and the main treatment measures include non-pharmacological and pharmacological treatments. Non-pharmacologic treatment is usually considered first, and pharmacologic treatment is indicated for patients with agitated delirium. An important step is to identify and define the risk factors for the onset of delirium in patients, such as pain, sleep deprivation or disruption of sleep rhythm, malnutrition or sensory impairment, or infection, and generally if these risk factors are identified, treatment of the risk factors is required. At the same time, the patient’s medication for the day is examined, and medications that may cause delirium episodes are screened and discontinued or treated with alternative medications. Medication should be used primarily to control patients with risky agitation, excessive movement, or inappropriate behavior, and is generally treated with a first-generation antipsychotic, haloperidol orally or a second-generation psychotropic, olanzapine.