To provide a sorting method of a conductive material from a plastic, which is capable of precisely separating the wire like conductive material and the plastic from each other and a sorting device.

In the sorting device for sorting by impressing high voltage between the drum electrode 1 formed freely rotatably around the horizontal axis in a prescribed direction and an acicular electrode 2 disposed at a position apart from the surface of the drum electrode with a certain interval to form a corona discharge field and falling down a mixture of the wire like conductive material with the plastic chips on the surface of the drum electrode from a fixed volume supply device 5 to pass the mixture through the corona discharge field B to separate the wire like conductive material from the plastic chips and to recover in a recovering vessel 6 arranged under a drum electrode 1, a supply part 8 for supplying the mixture by being vibrated vertically with a vibration device 15 is disposed in the fixed volume supply device 5 and is formed from a corrugated plate 11.