Public-Private Partnerships (PPP) models have been used for a longer period of time in countries around the world, it has become one of the core ideas and measures for many governments to achieve economic goals and enhance public service levels. Although PPP encountered some institutional confusion in China's practice, but China's public sector reform is one of the necessary institutional arrangements. In this paper, the underlying principles and advantages of PPP are introduced based on China's situation, this paper sets out themes which apply to all the various forms of PPP in China. Combined with the development of China's private economy and private capital, we explore the feasibility and advantages of the PPP model in the public sector, as well as the main mode of operation, stakeholder relationship, operational process and risk management.