Xishuangbanna Tropical Botanical Garden locates in Mengla County in Yunnan province which built by professor Xitao Cai in 1959, a famous botanist in China. It's the largest botanical garden in China with the bountiful species, besides it is a comprehensive research institute and scenic area gathering scientific research, species preservation and science education.

With a fertile land of 2800 acres, the Calabash Island is home to 12,000 kinds of live plants in 38 botanical gardens. Visitors can try the Mysterious Fruit that turns from sour to sweet; they can also have a look at Maytenin that can kill cancers. There are many wild species, for example, the killer of plants, a parasite that will kill its host; King Lotus (Royal Water Lily), which can bear a 20-kilogram child; Anthocehalus that can grow ten times faster than the pine tree; Southeast Dracaena that can help promote blood circulation and remove blood stasis, and black rosewood that is worth USD3,000 per ton and etc. No wonder when people regard Xishuangbanna as a green gem, they do not forget to refer to the Botanical Garden as the highlight of the gem. 

Besides, it preserves a field of primeval rainforest with an area of 60 acres and built a series of botanical resource libraries.