Abstract: Abstract: The ecology of the mining areas in western China is fragile, in where rich in coal and lack of water. The protection and utilization of water resources in coal mining is of great significance. Academician Gu Dazhao combined with more than 20 years of technical exploration and engineering practice of coal mine underground reservoir in Shendong mining area, the theoretical framework and technical system of coal mine underground reservoir with "guiding storage and use" as the core was proposed. Based on the construction experience of more than 30 underground reservoirs in Shendong mining area, the design concept of mining area-coal mine underground reservoir system of is studied. The design system composed of mining area-underground reservoir and roadway layout, dam design, reservoir capacity calculation, pipeline design, related chamber and equipment layout and safety monitoring system is constructed. The core technology of each system design is summarized, which is of great significance to the popularization of design of mining area-coal mine underground reservoir.