An image storage system includes: an image storage apparatus; and a supporting apparatus. And the image storage apparatus includes an input unit to which image information is input, a first communication unit, a management unit that executes management so that the input image information is transmitted from the first communication unit in automatic response to an input of the image information to the input unit, an information holding unit that holds the input image information until a transmission thereof is completed and then automatically discards the input image information after the transmission is completed in response to the management unit, an information storage unit at which related information corresponding to the image information having been transmitted is stored even after the transmission is completed, and an instruction unit that issues an instruction via the first communication unit with regard to processing to be executed on the image information based upon the related information stored at the information storage unit. On the other hand the supporting apparatus includes a second communication unit, an image storage unit at which the image information from the first communication unit having been received at the second communication unit is stored, and a processing unit that executes processing on images stored at the image storage unit based upon the instruction received at the second communication unit from the first communication unit.