Zi Niangxi, also known as the king of litchi, Hainan Provincial Academy of Agricultural Sciences Tropical Fruit Tree Research Institute, Danzhou City and Qingmei Wanxin Village, Qiongshan City Fruit Research Institute, Hainan Provincial Bureau of Reclamation, Fujian Provincial Planting Technology Extension Terminal, Xiamen City, Agricultural Extension Center and other units have the resources to save and planting, originating in Hainan Province, the mother tree is located in the Haikou City, Hainan Province, Yongxing Town, has been widely introduced to the Guangdong, Guangxi, Fujian, Fujian, China, and the United States. It is now widely introduced to Guangdong, Guangxi, Fujian and other litchi producing areas.