Theaceae 2015 Ninth China International Tea Expo in Xi'an from the natural distribution point of view of tea now found a total of 23 genera and 380 species, while China had 15 genera and 260 species, and most of the distribution in Yunnan, Guizhou and Sichuan area. Camellia has been found in more than 100 kinds, there are 60 kinds of the Yunnan-Guizhou Plateau, which accounts for most of tea tree important position. From the botanical point of view, many of the centers of origin of the genus concentrated in one area, that indicates that the region is the center of the origin of the flora. Theaceae, Camellia plant is highly concentrated in southwest China, illustrating the southwest of China is the center of the plant Camellia origin, comes the birthplace of tea. 2015 Ninth China International Tea Expo in Xi'an Song Dynasty and Song tea culture of tea has been a great development, and promote the development of tea culture, the emergence of the professional associations in the literary tea, there are officials "Tang Society" Buddhists "thousand Club" and so on. Zhao Kuangyin was a scholar addicted to tea, tea things set up agencies in court, the court has been graded by tea. Tea has become a ritual instrument system, thanks to the emperor win Minister tea has become an important means of kin dependents pregnant, also gave foreign envoys. As for the lower social Xi'an ninth Tea Expo exhibitors, tea culture is lively life, someone migration, neighborhood to "Xiancha 'Tis some visitor, ninth Tea Expo, to respect" ingot tea "tea Bo Xi'an ninth It will be business, when an engagement to: "under tea", to "set tea" marriage Tea Expo Xi'an ninth start time, to "co tea" is the same room. Cha Doo folk wind, brought a series of changes plucking cooking points. 2015 Ninth China International Tea Expo in Xi'an With the emergence of tea culture, tea houses around more and more. International Tea Culture Seminar has been opened to the fifth sector, attracting Japan, Korea, the United States, Sri Lanka and Hong Kong and Taiwan have joined. The main tea-producing provinces and cities and counties have hosted "Tea Festival", such as Fujian Wuyi City of Rock Festival in Yunnan Pu'er Tea Festival, Zhejiang Xinchang, Taishun and Hubei British Hill and Xinyang tea festival abound, all with tea as a carrier, to promote comprehensive economic and trade development.