How long the ascites drainage of liver cancer can still last by puncture cannot be determined, and it is related to the severity of the disease, tumor stage and other factors. In the middle and advanced stage of liver cancer, ascites is one of the main signs of liver cancer developing into middle and advanced stage due to infiltration of peritoneum, pressure on portal vein, cancerous thrombus formation in portal vein or hepatic vein, hypoproteinemia and combination of cirrhosis. The survival time of patients with advanced liver cancer is short, usually from half a year to one year, and the 5-year survival rate is less than 5%. After extracting ascites, patients should pay attention to bed rest and reduce the frequency of activities to prevent postural hypotension. Regular diet, appropriate exercise, avoid drinking a lot of water should also pay attention to daily water intake. Cooperate with the doctor, active treatment, and strive to obtain a longer survival period.