Disclosed herein is an image monitoring system including: a camera connected to a network; display means for displaying an image captured by the camera; and display control means for controlling display such that, in displaying images by the display means, an image is displayed in a window having a predetermined layout; wherein, the display control means presets an allocation database containing a correlation between the window having a predetermined layout and a camera identification code and, when the camera is connected to the network, automatically sets a correlation between the camera identification code in the allocation database and the camera, thereby controlling image display into the window on the basis of the allocation database.