Abstract: Adopting strong emission dewatering in the karst water-filled coal bed, widely distributed in south of China, often produces high drainage costs and more seriously, triggering many environmental geological problems, resulting in huge economic losses and adverse social impact. Daping Coal Mine, Chenxi mining Ltd of Hunan Mining Group, a karst water-filled coal bed, taking advantage of karst heterogeneity, has taken measures such as masonry walls sluice underground water shutoff in the production process, which makes mine a displacement greatly reduced and the groundwater level to regional recovery, avoiding the collapse of karst ground geological disasters and achieving with hydraulic mining. Based on the brief conditions of hydrogeology and engineering geology, this paper studies the karst development law of the direct water-filled aquifers. The benefits on the economic, environmental and social are studied with mining under water pressure. This paper is of certain guiding significance for karst water-filled coal bed scientific, safe mining of coal resources and the construction of double-type coal mine.