To provide a multiple lamp lighting system that can solve the problem of lighting failure due to the occurrence of a non-lighting lamp in a multiple lamp lighting system suitably used for lighting in a tunnel, for example.

A brightness sensor 50 is combined with each of a plurality of lamps 10. A lighting device 60 is controlled by a control section 70 based on output signals of the plurality of brightness sensors 50. The control section 70 detects a non-lighting lamp based on the output signals of the brightness sensors 50, and controls so that a properly-working lamp is used in place of the non-lighting lamp when some of the plurality of lamps 10 are selectively used.