Abstract: Abstract: The source of mine water, the water quality characteristics and the pollution effect of discharge on the environment are analyzed in this paper. The application of water treatment technology of different types of mine water and new technology such as desalt by electrosorb technology were expounded. Taking Huainan mining area as an example, according to the characteristics of water quality, the method of mine water treatment in Huainan mining area was put forward, which can improve the utilization rate of mine water and achieve the purpose of energy saving and emission reduction.