To carry out setting of distribution range without wasting time and labor.

An information distribution device (7) includes: a retaining means (7a) of retaining device information regarding a plurality of illumination devices (1 to N) connected to a network (6); a designating means (7c) of designating the distribution range of information to be distributed; a selecting means (7d) of selecting the illumination device for illuminating the range to be distributed out of the device information stored in the retaining means according to the delivery range designated by this designating means; and a setting means (7e) of setting information to be distributed to the selected illumination device.