To provide a camera image transmission system capable of transmitting, via one camera link cable, image output data of plural digital cameras without causing deterioration of an image quality.

The camera image transmission system comprises: a band widening circuit which widens the band of image output data of plural digital cameras Cam 1 to 4 in accordance with a camera link standard; and a recovery circuit which sorts the obtained wide-band image output data which is transmitted via one camera link cable, to image output data of each digital camera.