It is the goal for the executives to devote to searching for effective management. The issue of rationalization of human resource management system has been emphasized on strategic human resource management theory, but after examing the related literatures of domestic and foreign research, we find that the attempt to design an integrated human resource management system is not sufficient. So this research want to provide the enterprise set of items that must be considered in designing an effective human resource management system in three dimensions. 1.Rationalization of process: It denotes to the rationalization of the logic process of the system itself along with the practical process, such as participation in the process of system planning and communication enrichment. 2.Rationalization of contents: To consider what are the rationalized contents in accordance with the organizational contexts (culture, structure and management philosophy) and objectives. 3.Rationalization of results: It denotes to the extent that rationalized human resources management system reflects to the enterprise performance, it could be measured by qualitative and quantitative indice which critical to the effectiveness of human resource management system, such as employees' productivity, satisfication,…etc. This research would collect the details of human resource management practices by questionnaire and depth interview. It want to extract some common factors by principal component analysis to provide recommendation for designing effective human resource management system and discuss the causes which the enterprise can not rationalize their system.