According to one embodiment, a road lamp system includes a light-emitting section configured to irradiate light and an image pickup section. A power supply section operates as a driving power supply for the light-emitting section and performs power line communication with an external management apparatus. A road-lamp control section receives a control signal from the management apparatus via the power supply section and controls the light-emitting section on the basis of the control signal. A camera control section receives the control signal and determines, on the basis of image information transmitted from the image pickup section, whether a control operation instructed by the received control signal is executed.