A camera module, comprising: a liquid lens, the liquid lens comprising: a first plate comprising a cavity in which a conductive liquid and a non-conductive liquid are disposed; a first electrode disposed on the first plate; a second electrode disposed under the first plate; a second plate disposed on the first electrode; and a third plate disposed under the second electrode; a lens holder accommodating the liquid lens and a solid lens therein; a sensor substrate on which an image sensor is disposed, the sensor substrate being disposed under the lens holder; a control unit controlling a voltage to be applied to the first electrode and the second electrode; and a lens region, in which the conductive liquid and the non-conductive liquid are disposed, and a rib region surrounding the lens region and configured to protect the lens region, wherein the second electrode includes a plurality of individual electrodes (L1 to L4), characterized by a connection unit configured to electrically connect the first electrode or the second electrode to the sensor substrate; and a temperature sensor disposed on the connection unit, which is configured to transmit to the control unit a change in temperature of the liquid lens output from the temperature sensor, and which is configured to transmit to the temperature sensor a driving voltage, so that the temperature sensor can use a resistance value for measuring the internal temperature of the liquid lens, wherein the lens holder comprises a recess in which the temperature sensor is disposed, wherein the control unit is disposed on the sensor substrate, and wherein the temperature sensor is disposed in the rib region wherein the connection unit comprises: a first flexible printed circuit board transmitting a voltage to each of the individual electrodes (L1 to L4); and a second flexible printed circuit board connecting the first electrode to a ground voltage, and wherein the first flexible printed circuit board and the second flexible printed circuit board are located at opposite sides of the lens region. a liquid lens, the liquid lens comprising: a first plate comprising a cavity in which a conductive liquid and a non-conductive liquid are disposed; a first electrode disposed on the first plate; a second electrode disposed under the first plate; a second plate disposed on the first electrode; and a third plate disposed under the second electrode; a first plate comprising a cavity in which a conductive liquid and a non-conductive liquid are disposed; a first electrode disposed on the first plate; a second electrode disposed under the first plate; a second plate disposed on the first electrode; and a third plate disposed under the second electrode; a lens holder accommodating the liquid lens and a solid lens therein; a sensor substrate on which an image sensor is disposed, the sensor substrate being disposed under the lens holder; a control unit controlling a voltage to be applied to the first electrode and the second electrode; and a lens region, in which the conductive liquid and the non-conductive liquid are disposed, and a rib region surrounding the lens region and configured to protect the lens region, wherein the second electrode includes a plurality of individual electrodes (L1 to L4), a connection unit configured to electrically connect the first electrode or the second electrode to the sensor substrate; and a temperature sensor disposed on the connection unit, which is configured to transmit to the control unit a change in temperature of the liquid lens output from the temperature sensor, and which is configured to transmit to the temperature sensor a driving voltage, so that the temperature sensor can use a resistance value for measuring the internal temperature of the liquid lens, wherein the lens holder comprises a recess in which the temperature sensor is disposed, wherein the control unit is disposed on the sensor substrate, and wherein the temperature sensor is disposed in the rib region wherein the connection unit comprises: a first flexible printed circuit board transmitting a voltage to each of the individual electrodes (L1 to L4); and a second flexible printed circuit board connecting the first electrode to a ground voltage, and wherein the first flexible printed circuit board and the second flexible printed circuit board are located at opposite sides of the lens region. a first flexible printed circuit board transmitting a voltage to each of the individual electrodes (L1 to L4); and a second flexible printed circuit board connecting the first electrode to a ground voltage, and wherein the first flexible printed circuit board and the second flexible printed circuit board are located at opposite sides of the lens region.