Abstract
Malnutrition can reduce the body's immune function, and significantly increased higher incidence of infection, related complications, leading to higher hospitalization days, hospitalization expenses and mortality. At present, the nutrition assessment not only has been widely used in tumor disease; kidney disease; geriatric disease and other disciplines, but also concentrated in the patients with chronic liver disease. However, the clinic application of nutrition assessment in liver failure is limited. In the clinical practice work, malnutrition commonly comes with the course of patients with liver failure, and need to treatment. Therefore, the early judgment on their nutritional status, and follow the nutrition characteristics of individualized has gradually become an important part of the treatment of liver failure patients.