Postoperative pathology of liver cancer will not be benign. Liver cancer is a kind of malignant tumor, which will cause great harm to the human body if it occurs and will not be benign, so it is necessary to have a good understanding of it. Clinical manifestations of liver cancer mainly show right upper abdominal pain, nausea, vomiting, loss of appetite, jaundice, emaciation, weakness and so on. If liver cancer is found, preoperative examination and evaluation should be done well, postoperative contraindications should be eliminated, and patient’s physical condition should be adjusted to ensure the safety of surgery. Hepatic resection is a good treatment method, and attention should be paid to the recovery of liver function after surgery. In the perioperative period, the treatment of anti-infection, pain relief and nutritional support should be strengthened. After the operation, attention should be paid to the dressing change of the wound, and get out of bed more often to promote the recovery of gastrointestinal function. Hepatic artery embolization, chemotherapy and immunotherapy should also be carried out after surgery. If there is any adverse reaction after liver cancer surgery, one should go to hospital for examination in time.