Over the past hundred years，the PPP model has been promoted and applied in different countries both at home and abroad. Based on the government’s responsibility and responsibility for social capital，investment，construction and operation management of infrastructure and public service projects，the forms of cooperation between the two parties are also different. This chapter mainly studies the pedigree of PPP model and the most widely used models in our country：the features of BOT model，TOT model，BOO model，ROT model，TBT model and applicability analysis，the purpose is to ensure the use different modes of operation reasonably in the future government and society Capital cooperation process.