The invention relates to an acid heavy metal contaminated soil leaching remediation method. The method comprises the steps of sampling classification, leaching treatment, passivation maintenance, deodorization treatment and the like. According to the method, the contaminated components of the soil are analyzed, and the soil is classified, so that different treatment modes are adopted, heavy metalsubstances in the heavily contaminated soil need to be leached firstly, and after the content of the heavy metal substances is reduced, a remediation material is added into the soil for passivation and maintenance. For medium and light polluted soil, a repairing material can be directly mixed into the soil for passivation and maintenance. The method has the effect of improving the repairing quality by adopting multiple repairing methods for comprehensive treatment.