Currently, if liver tissue resection is performed, such as left hemicolectomy, right hemicolectomy, partial liver tissue resection, and liver wedge resection, it is about 40,000-50,000 RMB, but the cost can be reimbursed through medical insurance. Because of the rich blood flow in the liver, the surgery is difficult and requires various preparations such as surgical instruments before liver surgery, as well as high demands on the skills of doctors, the cooperation of nursing staff and the cooperation of anesthesiologists. Therefore, the human, material and financial costs are higher and the total cost is higher.