The present disclosure relates to a device for controlling a lamp for a vehicle. The device may include a lamp controller that determines whether to change a light range control code based on at least one of image information, map information, or illuminance information of a front region of the vehicle, and determines increase or decrease and an increase or decrease amount of the light range control code based on steering information, and a lamp for expanding or reducing a light irradiation range based on the light range control code.