The Longwu River has a total length of 170 kilometers, of which 46.6 kilometers flows through Tongren City, Huangnan Tibetan Autonomous Prefecture, Qinghai Province. The river is a tributary of the Yellow River in eastern Qinghai.

Local government has invested in the renovation of the river, and it has undergone earth-shaking changes. The project proposes to meet the needs of urban development, maintain the natural style of Tongren as much as possible, and promote the rapid development of "Regong"