The evaluation of liver function reserve, one of the key problems of hepatic surgery, is the fundamental and technical guarantee for the safe executioin of hepatectomy. The recent research developments on liver function assessment in the clinical application of liver disease were reviewed, and mainly included the proposal, development and application of Child-Pugh classification , MELD and APACHE-II scoring system, their application to hepatic surgery. The main aspect of this paper is comment on MELD scoring system.