1.Ia: single tumor with maximum diameter ≤3cm, no cancer embolus, abdominal lymph nodes and distant metastasis, liver function classification ChildA. 2.Ib: single or two tumors with maximum diameter sum ≤5cm, in half liver, no cancer embolus, abdominal lymph nodes and distant metastasis, liver function classification ChildA. 3.IIa: single or two tumors with maximum diameter sum ≤10cm, in half liver or two The sum of the maximum diameter of single or two tumors ≤ 10 cm, in the half liver or the sum of the maximum diameter of two tumors ≤ 5 cm, in the left and right halves of the liver, without cancerous emboli, abdominal lymph nodes and distant metastases; liver function classification ChildA. 4.IIb：The sum of the maximum diameter of single or two tumors ≤ 10 cm, in the half liver or the sum of the maximum diameter of two tumors ≤ 5 cm, in the left and right halves of the liver, or multiple tumors, without cancerous emboli, abdominal lymph nodes and distant metastases; liver function classification ChildA. ChildA: tumor status regardless, with cancer embolism of portal vein branches, hepatic veins or bile ducts and/or liver function classification ChildB. 5.Ⅲa: tumor status regardless, with cancer embolism of portal trunk or inferior vena cava, abdominal lymph nodes or distant metastasis; liver function classification ChildA or B. 6.Ⅲb: tumor status regardless, cancer embolism and metastasis regardless; liver function classification ChildC. It is important to understand the diagnostic criteria of liver cancer and to know how long early stage liver cancer can live. Then, how long can early stage liver cancer live? The prognosis of liver cancer depends most on the early stage of the disease The common treatment measure for liver cancer patients is surgery. If two centimeters of tiny liver cancer lesions without organ invasion are removed during surgery, the survival rate of patients can reach more than 60% in 5 years. However, for patients with liver cancer symptoms, the survival rate within five years after surgery is less than 20%. Therefore, the key to how long patients can live with advanced liver cancer is to detect liver cancer as early as possible and provide timely treatment. Therefore, the key to how long a patient can live with early stage liver cancer is early detection of liver cancer and timely treatment. How long a patient can live with early stage liver cancer depends largely on the degree of deterioration of the disease and the treatment method adopted, as well as the patient’s physical quality and psychological factors. Generally speaking, early stage hepatocellular carcinoma is small and has less chance of vascular invasion and metastasis. If the patient is in good health, the primary lesion can be removed surgically first to prevent local infiltration and metastasis of cancer cells. However, there is a problem that patients with early stage hepatocellular carcinoma may have tiny cancer cells left after surgery, so corresponding adjuvant treatment should be performed according to the patient’s physical condition. If the patient’s body can tolerate it, the patient can undergo adjuvant radiotherapy, but the duration of radiotherapy should not be too long, so as not to cause more toxic side effects. The key to how long can early stage liver cancer live is to improve patient’s immunity. Only when the patient’s own immunity is enhanced, the patient’s independent anti-tumor ability will be strengthened, and the patient will be protected from external diseases and maintain long-term health.