In China, liver cancer is the third most common malignant tumor with an incidence rate of 45% worldwide and a mortality rate second only to gastric cancer and esophageal cancer. The symptoms are not obvious in the early stage, but mainly manifest as liver pain, weakness, emaciation, jaundice and ascites in the late stage. Clinically, the combination of surgery, radiotherapy and traditional Chinese medicine is usually adopted in western medicine, but the cure rate of advanced stage patients is low due to the spread of cancer cells, therefore, early detection, early diagnosis and early treatment of liver cancer should be achieved. Therefore, early detection, early diagnosis and early treatment of liver cancer are necessary. We should do our best to prevent liver cancer and adhere to the prevention policy of “managing water, managing food and preventing hepatitis”.