Abstract: In order to solve the problem of inrush water in the empty mining area of the sloping long wall comprehensive mining face, it is easy to form water coal, and water coal entering the transportation system is prone to mechanical accidents and even casualties, on the basis of on-site production practices. A water inrush treatment system for sloping long wall composite mining face is summarized. Through the field application, the inrush water treatment system has solved the difficult problems such as the difficulty to discharge the water in the sloping long wall comprehensive mining face, the difficulty to derive the water in the roadway in the uphill mining face, and the coal mud treatment in the lower roadway, and ensured the safety and smooth production of the mine.