Pingnan County, anciently known as Zhangzhou, Guigang City County, Guangxi, is located in the upper reaches of the Xijiang River, between 23°2′19″-24°2′19″, 110°3′54″-110°39′42″, located at low latitude, the Tropic of Cancer crosses the middle of the county, near the sea in the south. The climate is mild throughout the year, the average annual temperature is 21.5℃, the annual rainfall is 1630 mm, the average annual sunshine is 1712 hours, and the annual frost-free period is 340 days. It is about 300 kilometers away from Guigang City, about 300 kilometers away from Nanning City, and about 369.3 kilometers away from Guangzhou. The county town is stationed in Pingnan Town, the urban area has been built in 30 square kilometers, and the tourist attractions that have been built have more than 10 such as the Grand Palace and the White Horse Shuangying.