Provided is a fishing light control system capable of optimally and automatically turning on, turning off and dimming fishing lights on the basis of the catch. The fishing light control system is provided with: a fishing machine system having fishing machines for operating the fishing gear and a fishing machine control unit for controlling said fishing machines； a first fishing light system having first fishing lights configured from multiple metal halide fishing lights； a second fishing light system having second fishing lights configured from multiple LED fishing lights； and a control device for determining the catches of the fishing machines per unit time using load data obtained from the fishing machine system and controlling the fishing machine system, the first fishing light system and the second fishing light system on the basis of the determined catch. The control device is provided with: a first means for completely turning on or partially turning on the first fishing lights and the second fishing lights at the beginning of operation and a second means for turning off the first fishing lights in a stepwise fashion when the catch per unit time is stable or increases after starting operation.
