To almost eliminate plastic pieces colliding with a separation plate to cause an error to enhance separation efficiency.

The plastic sorting apparatus is equipped with a drum electrode for feeding more than one kinds of ground plastic pieces to a sorting electrostatic field, the counter electrode arranged in opposed relation to the drum electrode to form a sorting electrostatic field between the drum electrode and the counter electrode and a recovery part for separating plastic pieces corresponding to polarity and charge quantity to sort them. A plurality of recovery chambers 11-13 demarcated by separation members 21 and 22 are arranged to the recovery part corresponding to purity or recovery and slits 18b and 19b capable of sucking plastic pieces are formed along the leading ends of the separation plates 18 and 19 of the separation members 21 and 22.