The invention discloses a street lamp control method and device. The method comprises the following steps: judging whether or not the current weather of each area is a normal weather; and under the situation that a judgment result indicates that the current weather of each area is the normal weather, performing turn-on/off control on street lamps in each area according to a fixed turn-on/off schedule. Through adoption of the street lamp control method and device, the technical problem that the requirement on on-time turn-on under the natural illuminance of 15lux cannot be met due to excessively late turn-on and excessively early turn-off under the situation of cloudy and rainy weathers caused by turn-on/off control of the street lamps completely based on the fixed turn-on/off schedule in a relevant technology is solved.