Abstract:Botanical gardens are considered to have played an important role in the studies of plant science , biodiversity conservation and sustainable utilization of plant resources of the world. They are also served as public education and knowledge dissemination centers, and performed an important function in cultural inheritance and historical continuity. The South China Botanical Garden, Chinese Academy of Sciences, the Royal Botanic Gardens, Kew, UK and the Missouri Botanical Garden, USA are comprehensively compared and analyzed in three aspects, i.e., species conservation, science research, and science communication. Some suggestions are put forward for the future development of South China Botanical Garden, which will have important reference value for the development of the Chinese botanical garden community in the future.