A direct-current breaking device comprising: a main circuit breaker inserted on a DC line; a resonant circuit connected in parallel with the main circuit breaker; and an energy absorbing unit connected in parallel with the main circuit breaker via the resonant circuit, wherein the resonant circuit includes first, second, third, and fourth switching elements (4, 5, 6, 7), a capacitor, and a reactor, a first circuit unit and a second circuit unit are connected in parallel, the first circuit unit including the first switching element and the second switching element connected in series with each other, the second circuit unit including the third switching element and the fourth switching element connected in series with each other, and the capacitor is connected between a connection point of the first switching element and the second switching element and a connection point of the third switching element and the fourth switching element to constitute a bridge circuit, and the bridge circuit and the reactor are connected in series with each other, characterized in that the direct-current breaking device further comprises: a first switch connected to one end of the capacitor; a first charging resistor grounded via the first switch; a second switch connected to another end of the capacitor; and a second charging resistor grounded via the second switch, wherein any one of the first switching element, the second switching element, the third switching element, and the fourth switching element and either one of the first switch and the second switch are controlled to be in a closed state depending on a state of the main circuit breaker, so that the capacitor is charged with positive polarity or negative polarity. a main circuit breaker inserted on a DC line; a resonant circuit connected in parallel with the main circuit breaker; and an energy absorbing unit connected in parallel with the main circuit breaker via the resonant circuit, wherein the resonant circuit includes first, second, third, and fourth switching elements (4, 5, 6, 7), a capacitor, and a reactor, a first circuit unit and a second circuit unit are connected in parallel, the first circuit unit including the first switching element and the second switching element connected in series with each other, the second circuit unit including the third switching element and the fourth switching element connected in series with each other, and the capacitor is connected between a connection point of the first switching element and the second switching element and a connection point of the third switching element and the fourth switching element to constitute a bridge circuit, and the bridge circuit and the reactor are connected in series with each other, characterized in that the direct-current breaking device further comprises: a first switch connected to one end of the capacitor; a first charging resistor grounded via the first switch; a second switch connected to another end of the capacitor; and a second charging resistor grounded via the second switch, wherein any one of the first switching element, the second switching element, the third switching element, and the fourth switching element and either one of the first switch and the second switch are controlled to be in a closed state depending on a state of the main circuit breaker, so that the capacitor is charged with positive polarity or negative polarity. a first switch connected to one end of the capacitor; a first charging resistor grounded via the first switch; a second switch connected to another end of the capacitor; and a second charging resistor grounded via the second switch, wherein any one of the first switching element, the second switching element, the third switching element, and the fourth switching element and either one of the first switch and the second switch are controlled to be in a closed state depending on a state of the main circuit breaker, so that the capacitor is charged with positive polarity or negative polarity.