Abstract: The present situation of coal mine water treatment technology in China is summarized systematically. The common treatment technologies of high suspended mine water, high salinity mine water and mine water containing special components are compared and analyzed. In recent years, coal mine water with high salinity and special components has been increasing year by year, and the relevant water quality standards have been greatly improved, which puts forward higher requirements for coal mine water treatment. In order to adapt to the new situation, coal mine water treatment technology should achieve large-scale low-cost treatment through scientific and technological innovation, and support the efficient use of mine water. First, it is necessary to vigorously develop underground treatment technology, make use of the advantages of underground space and rock mass natural purification, greatly reduce the cost of mine water treatment, and realize efficient utilization; the second is to use the abundant solar energy, geothermal and other new energy sources in western mining areas and waste heat from thermal power plants in accordance with local conditions to drive low-temperature multi-effect evaporation, membrane distillation and other treatment technologies, which can greatly reduce treatment energy consumption; The third is to promote mine water treatment to achieve “graded treatment and quality utilization” through the improvement of relevant standard systems.