Abstract: Abstract: In the process of coal exploitation, a large amount of mine water was discharged and evaporated, resulting in the loss of water resources. It is of great social significance to study the utilization of mine water resources and improve the utilization rate of mine water.In view of the traditional model that construct the treatment facilities of water supply and sewage on ground, the author puts forward the underground grading processing technology and concentrated brine storage technology to high mineralized mine water of Lingxin Coal Mine, it has changed the traditional mine water processing mode, effectively achieved the double zero target of the " zero surface clear water into the well and zero underground sewage up the well, saved the ground water, protected underground water resources. It has also effectively ensured the sustainable development of the mining area, opened up a new technical way for the treatment and utilization of mine water.