To accurately separate a mixture of fine conductive material particles and fine plastic particles which are easily attracted to each other by being electrified slightly.

A vibration sorter comprises a vibrating electrode 5 slanted at a prescribed angle θ, a counter electrode 12 arranged above the electrode 5 through a separation space 7, a mixture inlet 15 for supplying the mixture of the plastic particles and the conductive material particles to the middle part of the electrode 5, a high voltage power source 10 for forming a static electric field in the separation space by applying a high voltage between the electrode 5 and the counter electrode 12 so that the polarity of the electrode 5 is reverse to that of the electrified plastic particles, and a vibrator 6 for vibrating the electrode 5 to convey the mixture in the separation direction different from the inclination direction. The fine plastic particles are conveyed in the separation direction R along the vibrating conveyance direction by being sucked to the electrode 5, and the fine metal particles are dropped in the conductive material separation direction Q along the lower part in the inclination direction.