In many countries and areas, acid mine drainage leads to serious environmental pollution. The article analyses the source and mechanism of the acidic mining waste water. Some commonly used treatment technologies and principle of mine acid waste water treatment were analyzed. And the characteristics of several treatment methods are discussed in this paper. At present, of the acidic mining waste water treatment methods and main method of sulfide precipitation floatation, method of displacement, extraction method, combined processing and biochemical electrode method, etc.