The “Resource-conserving and Environment-friendly” Society Construction Experimental Area of Changsha-Zhuzhou-Xiangtan (CZT) Urban Agglomeration has achieved great success on the regional integration and integration of economy, the inter-governmental coordination mechanism has shaped, the cooperation has been institutionalized, the urban integration of infrastructure has made progress, and the distinctive and closely related industrial structure has been formed initially, however, some controversies and issues still exist, especially the administrative system issues that CZT administrative division brought forth have not been rationalized radically for a long time. The paper, combining the main problems of city-group administrative system in CZT with its future development and positioning, puts forward three patterns on city-group different stage with its administrative system. At the present stage, under the condition of maintaining the original CZT administrative division, improving the functions of the working committee and the management committee in pilot areas. The medium term is to build the metropolitan area government, and the long-term stage is to integrate CZT into the sub-provincial Changsha City, so as to promote the two-type society of construction and regional integration.