An electronic dust collecting apparatus comprising: a charger; and a dust collector installed downstream of the charger, wherein the dust collector comprises a dust collecting sheet (2001, 2002) comprising: a plurality of first electrodes and a plurality of second electrodes which are alternately arranged therein, a first sheet on which the plurality of first electrodes and the plurality of second electrodes are configured with a conductive pattern printed or deposited on one surface thereof and are alternatively arranged on the one surface thereof and, a second sheet laminated to the one surface of the first sheet on which the plurality of first electrodes and the plurality of second electrodes are arranged, a plurality of bent portions that are bent in a zigzag form in such a way that the plurality of first electrodes and the plurality of second electrodes face each other, and a plurality of slits (S, S11, S12) formed in each of the plurality of bent portions, wherein when a voltage is applied between the plurality of first electrodes and the plurality of second electrodes, an electric field is formed therebetween, and wherein slits of the plurality of slits (S, S11, S12) are formed along a side edge (221a, 221'a) of each of the plurality of second electrodes to expose the side edge (221a, 221'a) of each of the plurality of second electrodes. a charger; and a dust collector installed downstream of the charger, wherein the dust collector comprises a dust collecting sheet (2001, 2002) comprising: a plurality of first electrodes and a plurality of second electrodes which are alternately arranged therein, a first sheet on which the plurality of first electrodes and the plurality of second electrodes are configured with a conductive pattern printed or deposited on one surface thereof and are alternatively arranged on the one surface thereof and, a second sheet laminated to the one surface of the first sheet on which the plurality of first electrodes and the plurality of second electrodes are arranged, a plurality of bent portions that are bent in a zigzag form in such a way that the plurality of first electrodes and the plurality of second electrodes face each other, and a plurality of slits (S, S11, S12) formed in each of the plurality of bent portions, a plurality of first electrodes and a plurality of second electrodes which are alternately arranged therein, a first sheet on which the plurality of first electrodes and the plurality of second electrodes are configured with a conductive pattern printed or deposited on one surface thereof and are alternatively arranged on the one surface thereof and, a second sheet laminated to the one surface of the first sheet on which the plurality of first electrodes and the plurality of second electrodes are arranged, a plurality of bent portions that are bent in a zigzag form in such a way that the plurality of first electrodes and the plurality of second electrodes face each other, and a plurality of slits (S, S11, S12) formed in each of the plurality of bent portions, wherein when a voltage is applied between the plurality of first electrodes and the plurality of second electrodes, an electric field is formed therebetween, and wherein slits of the plurality of slits (S, S11, S12) are formed along a side edge (221a, 221'a) of each of the plurality of second electrodes to expose the side edge (221a, 221'a) of each of the plurality of second electrodes.