Liver cysts are benign diseases of the liver, clinically common and mostly congenital. Congenital liver cysts grow slowly, and small cysts do not cause any symptoms. If the cysts increase to a certain degree, they may cause symptoms such as fullness after eating, nausea, vomiting, vague pain and discomfort in the right upper abdomen due to compression of adjacent organs. Small liver cysts with no symptoms do not need special treatment and can be followed up. Those with large and symptomatic cysts should be treated appropriately. Commonly used methods are: 1. Cyst puncture and aspiration under B-type ultrasound guidance. This method is less invasive and more effective. 2, cyst “windowing”, that is, under the dissection or through the laparoscope to remove part of the cyst wall, aspirate the cyst fluid to open the cavity to the abdominal cavity. 3.Cystectomy is suitable for cysts at the marginal part of the liver, with the tip protruding into the abdominal cavity. 4.Large hepatic cysts in the left outer lobe of the liver can be removed by lobectomy or partial hepatectomy. 5.Surgical treatment for multiple hepatic cysts is generally not advocated and is limited to the treatment of large cysts causing obvious symptoms, and cyst puncture and aspiration or “windowing” is feasible to relieve symptoms. If the lesion is confined to a segment or a lobe of the liver and accompanied by symptoms, and the patient’s condition allows, resection of the segment or lobe of the liver is feasible.