Since July 1，2017，the procuratorial public interest litigation system has been officially implemented. The procuratorial organs of Zhejiang Province have actively and steadily promoted the work of public interest litigation and achieved remarkable results. The implementation of the system by the procuratorial organs has been evaluated as “Demonstration Project of People’s Livelihood Acquisition in Zhejiang Province”. On the basis of sorting out the work of procuratorial public interest litigation in the province in the past year，this paper summarizes the practical experience of procuratorial public interest litigation，analyzes the existing problems such as insufficient supply of legal system，insufficient handling of guarantee measures，and limited scope of legal supervision，and puts forward some countermeasures and suggestions such as promoting the improvement of legislation，strengthening the construction of coordination system，construction of scientific and technological equipment，financial support，and broadening the scope of supervision，in order to promote a better development of procuratorial public interest litigation system.