Abstract: Aiming at the characteristics of complicated compositions,fine size and high acidity of the zinc leaching residues produced from a zinc hydrometallurgy factory in Gansu,the paper describes some experiments on recovering silver from them with carrier flotation.The results of the tests show that the silver can be recovered effectively from the zinc leaching residues by carrier flotation.With AC-0 as carrier,lime as pH adjustment agent,ammonium dibutyl dithio phosphate and GC as collectors,through the flotation flow sheet of one roughing,one cleaning and one scavenging,with the middlings returning to the roughing,at natural pH(2) and pH=4,the silver concentrates with the grade of 3363g/t silver,recovery of 71.01% and the grade of 3760g/t silver,recovery of 69.47% can be obtained respectively.The recovery of silver from zinc leaching residue is realized.