A setting device includes: a communication circuit which communicates with a target lighting fixture in which a communication configuration is to be set up among lighting fixtures; a display which displays layout information of the lighting fixtures; a detector which detects a direction of movement of the setting device inside of a building, and an amount of the movement of the setting device; and a controller which causes the display to display, on the layout information, a position of the setting device derived based on the direction and the amount of the movement of the setting device. The controller determines whether the position of the setting device is within a predefined area, based on a location of the target lighting fixture, and sets up the communication configuration in the target lighting fixture via the communication circuit when the position of the setting device is within the predefined area.