Abstract: At present, the typical public works management systems in our country are decentralized management system, market-oriented construction agent system and centralized management system. In recent years, the extensive practice of centralized management system has aroused much discussion in academic circles, but these studies rarely go into the operational details of centralized management system to examine its advantages and risks. Based on an in-depth analysis of the actual operation of the centralized management system, this paper proposes that compared with the decentralized management system and the market-oriented construction agent system, the centralized management system has obvious advantages in efficiency, specialty and scale, at the same time, it is faced with the risks of preventing and controlling the risks of clean government, disconnection between construction and demand, rigidity of personnel establishment and insufficient motivation. It is necessary to carry on the reform and innovation in the institutional mechanism, so as to give full play to its institutional advantages and guard against potential risks.

Key words: public works, centralized management system, institutional advantage, risk prevention