China is advancing the implementation of national land spatial planning, intending to achieve "multiple regulations in one", promoting ecological civilization construction and urban green sustainable development. Urban green space is an integral part of the territorial area, and it needs to actively respond to the overall layout and system of national land space planning-development concept. The article analyzes the concept and scope of urban green space in the context of the reform of the national spatial planning system. Meanwhile, it demonstrates that current domestic urban green space still has insuf cient management system rigidity, spatial structural imbalance, lack of systemic and connectivity, low quality, and planning management level. The next step is to optimize the green public space planning procedures, improve the green space management system, increase construction efforts, and strengthen civic participation to enhance further the urban green space planning and management level in the new period.