When small intestinal obstruction is diagnosed, surgical treatment should be performed immediately. The earlier the surgery, the higher the cure rate. Before and after surgery, other symptomatic therapies such as energy replenishment, fluid replenishment, acid-base balance adjustment, and systemic antibiotics to control infection should be used. After the operation, the patient is fasted for 5 to 6 days, intravenous infusion is used to maintain the body's normal metabolism, and then liquid food is given until the regular diet is resumed. Enhance patient care after surgery.