China has entered an aging society. Elderly patients with acute abdomen have complex clinical manifestations and often have more complications. For elderly acute abdomen, the results of abdominal physical examination and laboratory testing often can not reflect the patient’s condition. The differential diagnosis of diseases should be emphasized in clinical diagnosis and treatment. The treatment of acute abdomen in the elderly not only needs standardized analgesic treatment, but also pays attention to the evaluation of the disease, and adopts multidisciplinary cooperation to formulate appropriate treatment plans.