Abstract: A method and system for calibrating an image display device are disclosed, which enable calibration of display characteristics of the image display device to be conveniently performed. The server for calibrating the image display device includes a setting value management unit configured to store a plurality of calibration setting values for calibration of a plurality of image display devices in a server, wherein the plurality of calibration setting values includes a first calibration setting value received from at least one of the plurality of image display devices and a second calibration setting value input by a user; and a task registration unit configured to, when one of the plurality of calibration setting values is selected, remotely request that the plurality of image display devices perform calibration based on the selected calibration setting value.