Land reserves have played an irreplaceable role in stabilizing urban growth, promoting transformation, and ensuring people's livelihood. At present, Shanghai's urban development is facing the dual pressure of counter-cyclical adjustment and resource constraints. Based on the in-depth analysis of the existing problems in the current land reserve, including lack of close integration between land reserve and planning implementation, imperfect overall control mechanisms, and insufficient comprehensive benefits, this paper proposes that the overall planning of Shanghai city should be taken as the guide, focusing on the construction of “five centers” and strengthen the overall planning as leading role in the city's land reserve work. Establish and improve a new land reserve mechanism characterized by “one leadership and five overall planning”, focus on the construction of reserve planning and programme system, storage and supply linkage mechanism, urban-rural integration mechanism, and high-quality implementation path, and provide relevant work suggestions for the implementation of the new land reserve mechanism, including deepening the implementation of the new mechanism for land reserve, carefully formulating land reserve planning and annual plans, focusing on enhancing the overall coordination of municipal land reserve work, carefully constructing high-quality implementation paths for land reserve, and deepening the construction of smart scenarios and information platforms. The top-level design and implementation path for the land reserve work in the future period is established.