Abstract: Studying world natural heritage value of Fanjingshan is significant guiding value for ecological environment protection and rational exploitation of natural resources of itself and other similar areas. The 10 heritage sites were selected which are located at different continents and whose climate and ecological environment similar with Fanjingshan, based on criterion (ix), from biological and ecological characteristic and evolution. The outstanding universal values of Fanjingshan were revealed after a global comparative analysis with similar areas worldwide. The comparative research shows that Fanjingshan possesses more complicatedly biological and ecological evolutionary process, more significant intersection of north and south, east and west flora, more unique Mountain natural vertical spectrum and more abundant biodiversity. Fanjingshan includes the biological and ecological characteristic of subtropical, warm temperate, temperate and cold temperate zone, and it is an outstanding example of biological and ecological evolution from mountain hills to sub-alpine mountains in subtropical humid zone worldwide. It represents world natural heritage value of mountain ecosystems in subtropical humid zone.