The invention discloses a method for recycling valuable metal from silver electrolysis mother liquor copper deposition drags. The method comprises the steps of (1) nitric acid leaching, wherein nitricacid is added into the silver electrolysis mother liquor copper deposition drags, and leachate is obtained; (2) silver replacing with copper sheets, wherein the thoroughly cleaned copper sheets are taken and inserted into the leachate, the pH is controlled to be equal to 0.5 to 1.5, and sponge silver powder and displacement liquid are obtained; (3) valuable metal deposition, wherein Na2S is addedinto the displacement liquid for deposition of copper, bismuth, lead and other valuable metal, and metal residues are obtained; (4) valuable metal recycling, wherein the obtained metal residues are returned into a smelting system, and copper, bismuth and lead are recycled; and (5) silver recycling, wherein the sponge silver powder is cast, then a silver electrolysis procedure is carried out, andsilver is obtained. The method has the beneficial effects of being good in environmental friendliness performance, simple in process, convenient to operate, high in comprehensive recycling degree andthe like.