Since the reform and opening up， compared with the advantageous status of the market and society， the government powers have enabled local governments to ″integrate″ various resources within the domains for the targets of economic development. With the gradual adjustment of power allocation and fiscal relations between the central government and local governments， local governments have changed constantly from the operation on the enterprises during the initial stage of reform and opening up to the operation on the land as a main public resource.Local governments have become the connection between the governmental power and the marketable operation mechanism, expanding its own power both on external resource drawing and internal resource integration.  Expansion is an inherent feature of government power. However, the governmental power expansion in ″integrated governance″mode is the result of the mixed effects of multiple factors. In the ″general governance mode″ of the planned economy era, government as a single power center, the market power and society power depended on the governmental power. With the growth of market and society in the traditional planned economic system, the inherent power boundary of the government has rolled back constantly, and the governmental power couldn't directly dominate and dispatch various social resources according to the approach of the planning system any longer|instead, it is necessary to adopt the corporatization management system under the market system to integrate and obtain market or social resources. In this sense, the essence of the power expansion of the local government in ″integrated governance″ mode is a reverse motion of the governmental power facing the increasing growth of the market and social power. Although its formal presentation is an ″entry″ of the governmental power into the market and society, what reflects behind is the gradual retreating of the governmental power boundary and the constant growth of market and society since the reform and opening up. As the logical result of local governments make the greatest use of economic powers delegated by the central government, the power expansion of the local government in ″integrated governance″ mode roots in the special central-local power allocation relationship as″political power centralization and economic power decentralization″. Therefore, such power expansion complies with the logic of″political resource transforming into economic capital - economic capital transforming into governance performance - building political legitimacy through governing the performance″, and focusing on the target orientation of the political performance. In the ″integrated governance″ mode, the connection of the political mechanism and administrative mechanism with the operation mechanism of company makes the regularity constraint of the traditional bureaucracy structure towards the governmental powers not work properly, and the power restriction and supervisory mechanism in the enterprise governance structure have not been established synchronously. Therefore, at the same time of bringing about relatively high performance, this governance mode also increases the risk of governmental power abuse and rent seeking.