Abstract: Mineral processing wastewater is rich in acid / alkali solution, solid suspension, heavy metal and flotation reagent residue, which has become the main cause of mine environment, water and soil pollution. In order to promote the treatment of mine wastewater and the reuse efficiency of water resources, This paper introduces the source and harm of mine wastewater briefly, and the treatment methods of mine wastewater is introduced in detail, such as acid-base neutralization method, coagulation sedimentation method, oxidation method, adsorption method, sedimentation method and other typical wastewater treatment technologies. Meanwhile, the application of new technologies in wastewater treatment is summarized, such as artificial wetland method, microbial treatment method, membrane separation method, electrochemical method and composite wastewater treatment technology. Finally, the application status of the treatment technology of mineral processing wastewater is described, and the research and development of the treatment technology of mineral processing wastewater are prospected.