To provide a method and an apparatus for electrostatic selection capable of stably performing selection without deteriorating selection purity even if resin pieces are excessively injected into the selection section.

The system includes an electrifying device 3 that electrifies the resin pieces 2a, 2b supplied with a supplying device 4, a vibration feeder 5 that conveys the electrified resin pieces 2a, 2b, a metering device 6 that measures a conveyance amount of the resin pieces 2a, 2b, a pair of electrodes 7 composed of a high voltage electrode 7a and a grounding electrode 7b that form a separation electrostatic field, a controller 9 that controls whether or not the application of voltage to the electrode 7 with information on the conveyance amount from the metering device 6, a recovering container 10a that recovers the resin piece 2a selected in the separation electromagnetic field, a recovering container 10b that recovers the resin piece 2b, and a recovering container 10c that recovers the resin pieces 2a, 2b that are not selected. This arrangement allows a high purity resin to be selected.