Abstract: Through the questionnaire survey, on-the-spot investigation, typical sampling, water quality test and other methods, The results showed that pH of coal mine water was neutral, pollutants in water was mainly inorganic pollutants, about 85% of the SS particle size of was less 50 microns. There was a significant linear correlation between the turbidity, COD, and SS.; mine water utilization technology mainly included coagulation sedimentation technology and inorganic ceramic membrane separation technology. Coagulation pretreatment technology of mine water treatment technology is the most common use of mine water treatment in Zhengzhou city.