A camera image display apparatus including a display request output part outputting a display request of camera images, a power supply part supplying power to a display unit, and a power supply control unit controlling flow of electricity so as to supply activating power from the power supply part to the display unit at a first time point within a predetermined time from a completion of an engine starting, when the display request is output by the display request output part at the first time point, and to supply activating power from the power supply part to the display unit at a second time point after lapse of the predetermined time, when the display request is not output within the predetermined time from the completion of the engine starting.