Abstract: With the rapid economic growth in the Changjiang River region, sand excavation scale is getting larger, so the sand mining management attracts lots of attention from the departments concerned. After Three Gorges reservoir impounded, the majority of the Chuanjiang reach lie within the reservoir area, the distribution and mining of sand and gravel resources possess the typical reservoir characteristics. This paper puts forward the main contents for compiling feasibility demonstration report of sand mining and its technical main points and difficulties. When calculating the controlled exploitation quantity, some innovative concepts were firstly introduced in the report such as reserve thickness, mining thickness, sand and gravel unit weight and available coefficient of sand and gravel resources.