Low protein in liver cancer can be improved by consuming some high quality high protein food in moderation, and if the effect of food supplement is not good, some human albumin can be infused under the guidance of doctor to improve the symptoms. Low protein in liver cancer is due to the decreased ability of liver to synthesize protein, poor appetite and low protein intake. Hypoproteinemia will lead to accumulation of fluid in the abdominal cavity and generation of large amount of ascites, so patients with liver cancer need to supplement high-energy and high protein food in their diet, and less high-fat food, such as milk, protein powder, etc., to supplement high-quality protein. In life, they should develop good living habits and take proper exercise. If the symptom of ascites is serious, some albumin can be infused under doctor’s instruction to improve the symptom. Patients with liver cancer need to develop good living habits and dietary habits, pay attention to nutritional matching, and not to take too much food.