The treatment of postoperative delirium mainly includes etiological treatment, supportive treatment and symptomatic treatment, which are as follows: 1. Etiological treatment is a very important point, and it should be directed at the treatment of the original disease; 2. Supportive treatment refers to the balance of water and electrolytes, and the patients should be given sufficient nutrition, and the outdoor surroundings should be improved according to the mental state of the patients to promote recovery; 3. Symptomatic treatment mainly aims to give corresponding help to the patient’s mental problems, such as the patient’s presence of agitation, and sedatives can also be used appropriately to promote the repair. Give appropriate help, for example, the patient exists in the state of agitation, can also be appropriate with sedatives to promote the repair, at the same time to avoid excessive stimulation of drugs, try to carry out short-term treatment. Postoperative delirium is a clinical emergency, belonging to the acute encephalopathy syndrome, delirium manifests itself as consciousness disorder, behavioral confusion, aimlessness, distraction, and sometimes motor disorders on the limbs. This situation must be actively handled, otherwise the mortality rate will be higher.