Urban stormwater runoff often leads to a series of serious problems,such as frequent flood,runoff pollution,loss of rainwater resources,ecological environment destruction,which pose a severe challenge to modern urban stormwater management.The traditional concept of single-target "rapid discharge" and the gray stormwater infrastructure and management mode which give priority to pipe drains,has been difficult to deal with the stomwater plight of the rapid urbanization process.On the basis of the analysis of difficulties and challenges which modern urban stormwater management facing,some suggestions were proposed from concept,planning,technology,public education and other aspects.Onsite control and terminal control is equally important in stormwater control system;establishing the multi-level,multi-objective control and utilization systems like "onsite emission reduction-process control-terminal storage utilization" is an inevitable choice and also the direction for the future of urban stormwater systems.Developing government regulation and market incentive systems that contain "stormwater discharge permit" working in coordination with "stormwater drainage fees",and improving urban stormwater management policy systems can provide protection for establishment of modern urban stormwater control systems. <<