One of the main purposes of this trip to Xishuangbanna is the Xishuangbanna Tropical Botanical Garden of the Chinese Academy of Sciences. Greenhouse Tropical Botanical gardens, whether in Beijing or Tokyo, have the same characteristics: small area, limited space, fewer varieties, a single number. Although there are many tropical plants in Hainan Island, it is really shocking to have such a large scale and gather tens of thousands of varieties of tropical plants in limited space. The construction of botanical gardens naturally depends on the superposition of manpower and material resources. Since 1959, under the leadership of President Cai Xitao, he has gone through the arduous efforts of five directors. Botanical gardens have emerged from scratch. At present, there are more than 10,000 species in botanical gardens, which have become the most outdoor preserved gardens in the world. The botanical garden management team did not engage in closed scientific research, but pushed the botanical garden to the market and built a national 5A tourist attraction. And it has become a base for popular science, promotion and publicity of plant diversity. Botanical gardens have also made tremendous contributions to species conservation. Dragon's blood tree, an endangered species in China, has been introduced successfully, and has made great breakthroughs in the research of its medical application. See blood seal throat, is the evergreen tree of Moraceae, its juice has very strong toxicity. Botanical gardens have done a lot of work to popularize this species. Let people know it, understand it, use it, and learn to avoid its risks. Limited by the number of photos available, it is impossible to show more of the botanical gardens'research results here. May you all feel what I feel when I am there. Once again for the Xishuangbanna Tropical Botanical Garden of the Chinese Academy of Sciences!