The government performance management is a unity of political and technical rationality, but at present, there is an obvious tendency that scholars pay attention only to technical rationality and neglect political rationality in the study of government performance management in the Chinese academic field. This can be easily demonstrated in the pursuit of self-consistencyas a management technology system, in the focus on the design and development of index system of government performance measurement through technical means, in the exploration into the government performance management mechanism with technical rationality instead of political rationality, and in the indulgence in seeking technical details. In future studies of government performance management, improvements must be made as follows: to strengthen the research of political rationality, to integrate the political rationality with technical rationality and to get rid of the short-sighted trap of research perspective under the guidance of technical rationality. On the other hand, a goal must be set for the study of ″big issues″ in government performance management, and greater importance must be attached to the local issues and efforts must be made to explore the mechanism of government performance management with Chinese characteristics. Furthermore, the related issues of government performance management must be explored from the systematic aspect of government reinvention so as to promote the transformation of governance mode.