A camera module, comprising: a liquid lens (142, 280, 320); a voltage control circuit, and a switching unit, wherein the liquid lens comprises: a first plate comprising a cavity in which a conductive liquid and a non-conductive liquid are disposed; a second plate disposed above the first plate; and a third plate disposed below the first plate, wherein a common electrode is disposed on one side of the first plate, wherein a plurality of individual electrodes are disposed on an opposite side to the one side of the first plate, wherein the voltage control circuit comprises: a first voltage generator configured to output a first voltage; and a DC bias terminal disposed between an output terminal of the first voltage generator outputting the first voltage and a ground voltage, wherein the switching unit comprises: a plurality of first switches (SW1 - SW4) configured to transmit one selected from among the first voltage and the ground voltage to the plurality of individual electrodes; and a second switch configured to transmit one selected from among the first voltage and the ground voltage to the common electrode, wherein the first voltage is applied to the plurality of individual electrodes or the common electrode during a predetermined period of time, wherein after application of the first voltage, a second voltage that is lower than the first voltage and is higher than the ground voltage is applied to the plurality of individual electrodes or the common electrode during the predetermined period of time, and wherein a level of the first voltage is decreased into a level of the second voltage by the DC bias terminal. a liquid lens (142, 280, 320); a voltage control circuit, and a switching unit, wherein the liquid lens comprises: a first plate comprising a cavity in which a conductive liquid and a non-conductive liquid are disposed; a second plate disposed above the first plate; and a third plate disposed below the first plate, wherein a common electrode is disposed on one side of the first plate, wherein a plurality of individual electrodes are disposed on an opposite side to the one side of the first plate, a first plate comprising a cavity in which a conductive liquid and a non-conductive liquid are disposed; a second plate disposed above the first plate; and a third plate disposed below the first plate, wherein a common electrode is disposed on one side of the first plate, wherein a plurality of individual electrodes are disposed on an opposite side to the one side of the first plate, wherein the voltage control circuit comprises: a first voltage generator configured to output a first voltage; and a DC bias terminal disposed between an output terminal of the first voltage generator outputting the first voltage and a ground voltage, a first voltage generator configured to output a first voltage; and a DC bias terminal disposed between an output terminal of the first voltage generator outputting the first voltage and a ground voltage, wherein the switching unit comprises: a plurality of first switches (SW1 - SW4) configured to transmit one selected from among the first voltage and the ground voltage to the plurality of individual electrodes; and a second switch configured to transmit one selected from among the first voltage and the ground voltage to the common electrode, wherein the first voltage is applied to the plurality of individual electrodes or the common electrode during a predetermined period of time, wherein after application of the first voltage, a second voltage that is lower than the first voltage and is higher than the ground voltage is applied to the plurality of individual electrodes or the common electrode during the predetermined period of time, and wherein a level of the first voltage is decreased into a level of the second voltage by the DC bias terminal. a plurality of first switches (SW1 - SW4) configured to transmit one selected from among the first voltage and the ground voltage to the plurality of individual electrodes; and a second switch configured to transmit one selected from among the first voltage and the ground voltage to the common electrode, wherein the first voltage is applied to the plurality of individual electrodes or the common electrode during a predetermined period of time, wherein after application of the first voltage, a second voltage that is lower than the first voltage and is higher than the ground voltage is applied to the plurality of individual electrodes or the common electrode during the predetermined period of time, and wherein a level of the first voltage is decreased into a level of the second voltage by the DC bias terminal.