Abstract: The groundwater pollution in rare earth mining area in southern Jiangxi is serious due to the influence of ion-type rare earth ore mining. Based on related literatures both at home and abroad, the present situation of rare earth elements, ammonia-N, nitrate-N, nitrite-N and sulfate pollution caused by ore mining and in-situ leaching in the rare earth mining area of southern Jiangxi was expounded, the hazard of this type of pollution analyzed, and the existing methods of groundwater remediation as well as their application limitations summarized. Finally, the groundwater pollution control ideas suitable for rare earth mining area in southern Jiangxi were proposed, in order to provide reference for local groundwater pollution control.