Patients with liver cancer may have their gastrointestinal tract function affected, and they may show a loss of appetite and do not want to eat. As liver cancer is a wasting disease, if the patient is unable to eat, the patient’s nutrition will be depleted very fast. In this case, intravenous rehydration therapy is needed to infuse glucose, amino acids, medium/long chain fatty milk, electrolytes and vitamins to maintain the energy necessary for the body’s basic metabolism every day. These treatments can effectively improve the general nutritional status of the patient and thus strengthen the resistance, which may provide a strong guarantee for the patient to overcome liver cancer.