Abstract: Under the background of constructing a socialist modern country in an all-round way, the flood safety has become not only a crucial part for ensuring social stability and people’s lives and property safety, but also a key link of the national public safety system. To ensure the safety of rivers and people, and make up for the shortcomings of China’s flood control system in the new stage, this paper deeply analyzes the current situation and practical difficulties of China’s land and space flood control management, and draws lessons from the advanced practices of developed countries. On this basis, it formulates the perfect path of flood management for national land space from the aspects of perfecting top-level design, strengthening planning linkage, enhancing land use zoning, improving population management policies, reinforcing the flood risk management and determining policy priorities, which provides reference for improving China’s flood management level for national land space.