Liver cancer is a common clinical tumor of the digestive system, and its malignancy is very high, and the average survival cycle of patients is relatively short and the prognosis is poor. Liver cancer mostly comes from underlying liver diseases, such as long-term viral infections, which are more common in China, such as hepatitis B and C viral infections, long-term heavy alcohol consumption and unreasonable living and eating habits, which cause liver cancer to occur. In late stage of liver cancer, there will be some serious complications, such as gastrointestinal bleeding, hepatic encephalopathy, hepatorenal syndrome, etc. Patients show abnormalities in their mind, abdominal distension and multi-organ failure, which mostly suggest that patients may lead to clinical death, and should be given timely symptomatic treatment to prolong patients’ life and reduce their pain.