The issue of government performance appraisal has been paid close attention in foreign academic and political circles since in the 1950s and has become a hot topic in China so far.The article begins with the definition of government appraisal,analyzes its theoretical framework,discusses the model of appraisal subjects diversification composed by government organization,NPC organization,experts or academic organization and the public,and,furthermore,constructs the governmental performance appraisal index system based on the model of "dimension-basic index-index element".