Abstract: Analysis was conducted of the status quo of and existing problems with preservation of rare and endangered plant species in botanic gardens in China with stress on effectiveness of the ex-situ preservation of rare and endangered plant species in botanic gardens,growth and adaptability,duplicate cultivation,and size of effective communities of rare and endangered plant species in botanic gardens,and establishment of a scientific record keeping system and a scientific record keeping system and monitoring center.Meanwhile, countermeasures and recommendations were put forth for sustainable development of the ex-situ preservation of rare and endangered plant species in botanic gardens;a preservation network system be set up with botanic gardens as its basis;the program of ex-situ preservation of rare and endangered plant species be intensified with emphasis;establishment of a scientific record keeping system and a monitoring center be reinforced and funds be raised from various channels to strengthen the support;and personnel training and academic exchange be enhanced.