Abstract: Based on the characteristics of cyanide tailings from a gold mine,experimental research was carried out for the detoxification treatment of them with 2 different hydrogen peroxide oxidation methods: the direct hydrogen peroxide oxidation method and the pH-adjusted hydrogen peroxide oxidation method.The results show that the tailings treated by the 2 methods both could meet the requirement for ClassⅠcommon industrial solid waste.Considering its easy accessibility,low treatment cost and environmental friendliness,the direct hydrogen peroxide oxidation method stands out.Its optimal treatment conditions are: 2.5 mL/L 30 % hydrogen peroxide and 1 h reaction time.