Sanxi () is a town in Jingde County, Anhui, China. As of the 2016 census[ [update]] it had a population of 13,083 and an area of . It is only away from Huangshan Scenic Spot. It borders Caijiaqiao Town in the East, Suncun Town in the south, Xinglong Town in the West and Langqiao Town of Jing County in the north.