Abstract: Abstract: 【Objective】The state of the Chinese cities that are vulnerable to earthquakes is getting worse gradually. Therefore, it is a matter of great urgency to build a comprehensive disaster prevention system in Chinese cities, particularly through building urban green area system to strengthen earthquake resistance and minimize damage. Urban green area not only has its function as landscape, but also serves as a core component of the city disaster prevention system.【Method】Based on the layout of the green system, this article focuses on urban green space as the research target, including macro-system and micro-individual levels. Further, it systematically analyzed the park layouts, road systems, function blocks, landscape formations, garden elements, and other elements in urban green space. In addition, it clearly pointed out their functions in disaster mitigation.【Result】Systematic analysis of different aspects of spatial arrangement, road systems, function blocks, landscape formations, and garden elements, and of their ordinary functions in an urban park, clearly indicated the individual functionalities of layout structure, function blocks, several kinds of road systems, and garden elements of urban park during disasters.【Conclusion】 To provide reliable support for the transformation of urban green area in disaster time, point out clear directions are required. This research emphasizes the role of urban green spaces of all types in earthquake prevention and disaster mitigation, using general and specific perspectives. Furthermore, to enable urban green spaces to play an effective role during a disaster, this research proposes innovative layout modes such as centralized layout mode, scatter point reticulation pattern, zonal sequence layout mode, and classification spatial layout transformation. This will play an important role in guiding the design and planning of existing and future green spaces.