An illumination control system comprising: a plurality of illumination fixtures (1, 1A to 1F) each having a specific address, the plurality of illumination fixtures being able to individually undergo dimming control according to an external lighting control signal; and an illumination control terminal that has an imaging element and sets an imaging range (b) so as to include illumination ranges of the plurality of illumination fixtures (1, 1A to 1F), wherein the illumination control terminal is adapted to - divide an imaged image by the imaging element into a plurality of areas (A to F) with respectively relating the plurality of areas to the illumination ranges (c) of the illumination fixtures (1, 1A to 1F); - determine whether or not a person is present on a basis of the imaged image,; - determine a division area (A to F) where the person is present upon detection of a person; and - perform the dimming control of an illumination fixture (1, 1A to 1F) corresponding to the division area (A to F); characterized in that the illumination control terminal with the imaging element is placed on a ceiling of a room and the imaging element is adapted to image the imaged area in a top view; the illumination control terminal contains a motion determination part that is adapted to determine a pixel group representing a person entering the room based on a differential image that is a pixel based difference of a between image data of a background image and actual image data sent from the image sensor, and that is further adapted to update the background image periodically in given time intervals; the illumination control terminal contains a position determination part that is adapted to determine the coordinates of the pixel group representing the entering person in the differential image and to determine that the person is stationary if within a set time period the coordinate change is less than or equal to a specific value; the illumination control terminal is adapted to provide a function of measuring illumination intensity distribution of the imaged image for each of the division areas (A to F); upon detection of a person, calculates average illumination intensities respectively in the remaining division areas (A to F) excluding the division area where the person is present; and performs feedback control of the respective illumination fixtures (1, 1A to 1F) such that the average illumination intensities respectively become equal to preliminarily set target values. a plurality of illumination fixtures (1, 1A to 1F) each having a specific address, the plurality of illumination fixtures being able to individually undergo dimming control according to an external lighting control signal; and an illumination control terminal that has an imaging element and sets an imaging range (b) so as to include illumination ranges of the plurality of illumination fixtures (1, 1A to 1F), wherein the illumination control terminal is adapted to - divide an imaged image by the imaging element into a plurality of areas (A to F) with respectively relating the plurality of areas to the illumination ranges (c) of the illumination fixtures (1, 1A to 1F); - determine whether or not a person is present on a basis of the imaged image,; - determine a division area (A to F) where the person is present upon detection of a person; and - perform the dimming control of an illumination fixture (1, 1A to 1F) corresponding to the division area (A to F); - divide an imaged image by the imaging element into a plurality of areas (A to F) with respectively relating the plurality of areas to the illumination ranges (c) of the illumination fixtures (1, 1A to 1F); - determine whether or not a person is present on a basis of the imaged image,; - determine a division area (A to F) where the person is present upon detection of a person; and - perform the dimming control of an illumination fixture (1, 1A to 1F) corresponding to the division area (A to F);