The invention provides a lamplight control method. The lamplight control method includes the steps that movement information sent by a first terminal and a second terminal is received; according to the movement information of the first terminal and the second terminal, whether the second terminal is located in a preset area corresponding to the first terminal or not is determined; and when the second terminal is located in the preset area corresponding to the first terminal, a first adjusting instruction is sent to a traffic tool corresponding to the first terminal, and lamplight of the traffic tool corresponding to the first terminal is adjusted. The invention further provides a lamplight control device.