Sanhe is a town in Chenggu County, in the southern part of Shaanxi province, China. It sits on the southern, or right, bank of the Han River, directly southeast across the river from the county seat of Chenggu.
As of 2018, the town administered one residential community and seven villages. The Han River forms its northwestern boundary, separating it from the county seat on the opposite bank.
For transport, motorists can use China National Highway 316 to reach the county seat, while the G5 Beijing–Kunming Expressway provides faster access to destinations further away.