Abstract: Acid mine drainage (AMD) produced from tailing impoundments can result in serious contamination of the soil and groundwater around tailing impoundments.Numerous at-source control measures have been conducted to decrease the oxidation efficiency of sulfide mineral contained in tailing sand in order to prevent the formation of AMD at its source.These methods are classified into four major types:dry covers (mineral cover and organic cover),wet covers,alkaline addition,and bacterial inhibition.This review describes the work mechanism,construction method and engineering example of the current at-source control methods.In addition,some Shortcomings with respect to these at-source control measures have been summarized.some problems that are in need of further study for these at-source control measures includes:the deterioration mechanism of mineral covers,the negative effect of organic covers,the effects of environmental conditions on the performance of wet covers,the encapsulation problems with alkaline addition,and the development of new bactericide and dosing methods of bacterial inhibition.