Abstract: This study aims to develop a technology to modify and treat Class Ⅱ solid waste for the specialized treatment of sulfuric iron ore waste slag.To achieve this goal,this study utilized Class Ⅱ solid waste from a mining waste heap in the Malyupu sulfuric iron ore area of Lueyang County as an example.The study prepared geopolymer test blocks using sulfuric iron ore waste slag and then tested the compressive strength of the blocks and the toxic leaching values of heavy metal elements.Additionally,the solidification rate of heavy metals in the blocks was analyzed.The results demonstrated that the strength of the geopolymer specimens increased with the curing age.Specifically,the unconfined compressive strengths of the specimens cured at room temperature for 7,14,and 28 days were 0.183 Mpa,0.350 Mpa,and 0.753 Mpa,respectively.The geopolymer derived from sulfuric iron ore waste-discarded slag demonstrated the effective solidification of heavy metal ions such as Cd,Pb,Ni,Zn,Co,and Mn ions.A better curing effect,curing rate exceeding 90% or more,and good stability.The leaching values of the elements under of acidic leaching conditions were significantly lower than are far below the limit values for Class Ⅱ surface Ⅱ water value of surface Ⅱ water.The comprehensive analysis suggests that the geopolymer produced from sulfuric iron ore waste slag exhibits relatively good suitability for the management of sulfuric iron ore waste slag management has a relatively good suitability.