The gold in the gold ores from a heap leaching mine in Xinjiang is mainly micro-fine grain gold and encased in gangue mineral and metal mineral,leading to lower gold leaching rate.To solve the problem,experimental research of rolling bottle leaching and column leaching is carried out by adding leaching auxiliaries.Semi-industrial test shows that the heap leaching index is good:when the addition of No.2 leaching auxiliary is added at 500 g/t,the gold leaching rate is 71.05 %,3.60 percentage points higher than that of conventional heap leaching,and the sodium cyanide consumption is reduced by 22.70 %,creating 8.19 yuan/t more profits.