Urban green space is a type of open space furnished with grass, trees, flowers, water as well as some necessary infrastructures. It is an essential element of cities to the quality of life for urban residents. In current years, more and more urban planners pay great concern with the relationship of climate change and urban green space system. They are looking for smart ways of urban green space planning to meet the needs of climate adaptation and climate change mitigation. This paper explores green space in the city of Adelaide in South Australia and compares green space policies and practices in Adelaide city with Fuzhou city in South China, and analyses and summarises the main conceptions and data of Fuzhou green space system planning (2015–2020) with the aim of promoting Adelaide city green space planning in future. An improved green space system in Adelaide will strengthen the resilience of the city to climate change as well as other challenges presented with the growing population and the growing urban areas.