The method discloses a method for selecting gold from gold ore leaching residue. The method comprises the following steps: ore grinding, grid screening, roughing, scavenging, first selection, second selection and third selection. Active carbon is added during ore grinding, gold loaded carbon with higher gold content is firstly screened by adopting a 40-mesh grid screen at a ball-milling ore discharge port, then an inhibitor, a collecting agent and a foaming agent are added during the floatation process, and finally size mixing and stirring are carried out for roughing floatation work. The inhibitor is sodium fluosilicate, the collecting agent is Ammonium dibutyl dithiophosphate, and the foaming agent is terpenic oil. According to the method, through reasonable allocation of ore grinding and grid screening, the gold grade of the gold loaded carbon reaches to 70-80 g/T, the gold grade of floatation gold concentrate reaches to 15-20 g/T, the recovery rate of the gold loaded carbon reaches to 5-6%, the recovery rate of floatation gold reaches to 50-55%, and the total recovery rate of gold reaches to 55-61%. The ore dressing method is simple in technology and easy to operate on site.