Abstract:Under the background of high-quality development, the importance of refined management of PPP projects is highlighted, and the management of complex PPP multi-project is facing challenges. Taking the basic situation of the PPP project for the supporting facilities of Zhangjiagang Station Passenger Transport Hub of Shanghai -Nantong Railway as an example, four characteristics of multi-organization management, multi-role management, full life cycle management and multi-project management existing in the current projects are analyzed and summarized. Aiming at the above characteristics, it is pointed out to build an excellent performance management system for complex PPP multi-projects based on the excellent performance model. The all-round management model for complex PPP multi-project is perfected. Finally, the management method for refined management of complex PPP multi-project is composed.