Minimally invasive hepatectomy is a surgical technique to remove liver tumors such as hepatocellular carcinoma, hepatic hemangioma and focal nodular hyperplasia of the liver by using laparoscopic techniques, which has the advantages of small trauma (small incision), good exposure and fast recovery, but requires high technical skills and rich experience in open surgery. Minimally invasive liver resection, instead of the original method of liver resection using large incisions (greater than 20cm), several small holes are made in the abdomen, the largest 1cm and the rest 0.5cm, and the ligaments, blood vessels and other related tissues around the liver are separated by laparoscopy in a completely closed abdominal cavity, and then various benign and malignant tumors in the liver are finely removed, and finally the resected tissues are taken out of the body through small incisions. It avoids the large trauma to the abdominal wall muscles and other tissues caused by the huge incision caused by open surgery, reduces postoperative pain, reduces surgical scars, and maintains beautiful skin.