This image evaluation device has as the purpose thereof to provide image evaluation that suits individual users for images shared on a network. This image evaluation device is characterized by being provided with the following: an image characteristic amount extraction means for extracting an image characteristic amount from each of a plurality of images; an evaluation information acquisition means for acquiring evaluation information that contains evaluations for each of the images of the plurality of users including a main user; a generation means for generating, on the basis of the image characteristic amounts and the evaluation information, information indicating the relationship of the images, users, and image characteristic amount groups into which the image characteristic amounts are classified; and an image social importance calculation means for calculating, on the basis of the information generated by the generation means, image social importance that indicates the importance of the image for the main user.