Abstract: Mineral processing wastewater contains a lot of metal elements. The direct discharge without any treatment will cause serious pollution on water and environment. However, it could be reused in an ore beneficiation process with proper treatment. Based on analyzing the sources of wastewater and its characteristics, the most commonly used treatment technologies for mineral processing wastewater were summarized. The achievements and problems in wastewater treatment in China are reviewed, and the future directions of research and development of wastewater treatment are put forward.