The invention discloses a processing method for lead removing slags generated by antimony smelting. The method comprises the following steps of: crushing the lead removing slags, adding scrap iron and alkali, and mixing uniformly; (2) heating an obtained mixture to be molten, and carrying out a reaction; and (3) placing statically an obtained reaction product and separating scums. The method is characterized in that the lead removing slags are generated when refining and lead removing are carried out by using phosphate during an antimony fire method smelting process; and the alkali is not decomposed and boiled below 1350 DEG C. By adopting the method, antimony and lead in the lead removing slags are recycled; more than 95% and 90% of antimony and lead in the lead removing slags respectively enter into antimony-lead alloys through selecting appropriate amounts of scrap iron and alkali, and contents of antimony and lead in the scums are less than 1%, and antimony and lead are fully recycled. Furthermore, the processing flow is short and no'three wastes'(waste gas, waste water and waste residues) can be generated in the whole process.