A plasma induction device includes a discharge tube which provides an induction space for plasma, and which has an inlet for injecting gas and an outlet through which the gas is processed and discharged; an ignition antenna which is electrically wound in a first winding direction on the basis of the central axis of the discharge tube, and which is for igniting the plasma in the discharge tube; a maintaining antenna, which is electrically wound in the same direction as the first winding direction on the basis of the central axis of the discharge tube, is arranged to be physically spaced apart from the ignition antenna, and forms an electric field for maintaining the plasma in the discharge tube; a first canceling coil electrically wound in a second winding direction; and a second canceling coil which is arranged to be physically spaced apart from the first canceling coil.