The present invention provides a method for setting more convenient light emission control for each light emission tool in an area. This setting method is a method for setting light emission control for each light emission tool in an area and comprises: a light emission step of sending an arbitrary ID signal (Sn) to a plurality of light emission tools which is arranged at random in an area and emits light upon receiving a corresponding ID signal, thereby lighting a light emission tool (En) that receives the ID signal (Sn); an imaging step of acquiring a light emission image (En) in the area after sending the ID signal (Sn); a determination step of determining from the light emission image (En) a position of the light emission tool (En) that emits light upon receiving the ID signal (Sn) in the area; and a storage step of storing the position of the light emission tool (En) in the area and the corresponding ID signal (Sn) in association with each other.
