In the context of the increasing number of PPP disputes，it is of great significance to clarify the legal nature of PPP contracts and the ways to resolve disputes，so as to resolve disputes and promote the development of PPP model. Although the “Regulations on Several Issues in the Hearing of Administrative Agreement cases” does not completely block the channels for resolving PPP disputes through civil litigation or arbitration procedures，the space left behind is already very narrow. It remains to be seen whether measures such as agreement jurisdiction，multiple relief mechanisms，and civil legal norms provided by the interpretation can effectively protect the rights and interests of social capital parties. In the case where the existing legal system cannot make breakthrough provisions in the short term，the social capital party can split the PPP contract and set up different dispute resolution methods. In order to ensure the smooth development of the PPP model，it requires the joint efforts of the legislature，the judiciary，the government and the social capital.