A camera module includes an optical lens unit and a light sensing unit. The light sensing unit is provided along a light outgoing path of the optical lens unit so that the light sensing unit is able to sense light emitted from the optical lens unit. The light sensing unit further includes a photoelectric converting element and a conducting unit connected to the photoelectric converting element. The conducting unit transfers electrical signals converted and generated during operation of the photoelectric converting element, and conducts heat generated during operation of the photoelectric converting element outside.