Artificial liver is a kind of blood purification, with the continuous improvement of comprehensive internal medicine treatment, after the artificial liver of the “Twelfth Five-Year Plan”, the success rate of the artificial liver in treating liver failure has increased from 40%-50% to 70%-80%. This is a great progress for the treatment of liver failure, however, the remaining 20% of patients still have poor results with artificial liver, then need to undergo liver transplantation, artificial liver makes the patient have the physical conditions for liver transplantation, and lays a good foundation for liver transplantation.