Dahua Introduction: Dahua Yao Autonomous County was established in October 1988, in the middle reaches of the Hongshui River in the northwest of Guangxi Zhuang Autonomous Region, belonging to Hechi City, by the edge of Du'an Yao Autonomous County, Bama Yao Autonomous County and Nanning area in Hechi District at that time. The composition of the joint. The county has a total area of ​​2,716 square kilometers. It consists of 3 residential communities in 155 villages with 13 townships and 3 towns. In 2012, there were 461,500 people in the county, including 376,600 in rural areas, accounting for 81.6%; 107,000 in the reservoir area, accounting for 23.2%; and 95,623 in Yao, accounting for 20.72% of the county. Dahua County is not only the hometown of Yao culture in the world, but also the hometown of Chinese ornamental stone. It was discovered in the 1990s that Dahua Caiyu stone is famous for its fine skin, bright color, hard quality and shape. This new stone species has become The most popular and most expensive ornamental stone in China today. In October 2007, he was awarded the title of “Hometown of Ornamental Stone in China”.