Disclosed are an apparatus and a method for normalizing an image of a driver's face in a predetermined size on the center of a monitor by automatically controlling a lens when the image of the driver's face is detected. The apparatus includes a lens for photographing a driver's face, a first motor for moving the lens in a forward or rearward direction in order to adjust a zoom parameter, a second motor for moving the lens in a horizontal or vertical direction in order to adjust a pan parameter or a tilt parameter, and a controller for extracting an initial face area from a photographed image and controlling operations of the first motor and the second motor according to the extracted initial face area.