Abstract: A processing method by which metals may be recovered at a high purity from metal-containing waste materials.The method for processing metal-containing waste materials comprises crushing a metal-containing waste material to a particle size of 1-50 mesh, separating and recovering the metal-containing particles from the crushed portion, introducing the metal-containing particles into a vacuum heating furnace, pre-heating the furnace while under suction evacuation, and then raising the temperature of the furnace in stages while continuing the vacuum suctioning, recovering the metal and non-metal vapor produced at each temperature level using a condensing and adsorbing means, and recovering the liquated metals as melts. The method may be used to process waste batteries, copper-containing waste materials and the like in the same manner to recover high-purity metals.