The invention relates to a method for reducing calcium ions and magnesium ions in an electrolytic manganese qualified solution, and belongs to the technical field of metallurgy through an electrolyticmanganese metal wet method. The pH value of the electrolytic manganese qualified solution is adjusted, and an extraction organic phase is prepared; the extraction organic phase is subjected to saponification through alkalin liquor to obtain a sodium soap organic phase, and the sodium soap organic phase is subjected to manganese soaping through a manganese sulfate solution to obtain a manganese soap organic phase; the obtained manganese soap organic phase is used as an extraction agent, and the electrolytic manganese qualified solution subjected to pH adjustment is used as extraction liquid for extraction to obtain an organic phase loaded with the metal ions of the calcium ions and the magnesium ions and a deeply-purified electrolytic manganese qualified solution; the obtained organic phase loaded with the metal ions of the calcium ions and the magnesium ions is subjected to manganese washing through a dilute manganese sulfate solution, and then sulfate reverse extraction is adopted toobtain a regenerative extraction organic phase and a water phase loaded with the metal ions of the calcium ions and the magnesium ions, wherein the regenerative extraction organic phase can be recycled. By means of the method, removing of the calcium ions and the magnesium ions with high concentrations in the electrolytic manganese qualified solution can be effectively achieved, meanwhile, loss of manganese ions is avoided, and moreover, impurity ions such as F<-> are not introduced.