An image defect detection device that divides an original print image and a print image printed on the basis of the original print image into corresponding regions, acquires an image feature amount of each divided region, extracts a strength of a difference of each divided region between the original print image and the print image, calculates an image defect detection time indicating a time required to detect a defect of each divided region of the print image from the image feature amount and the strength of the difference of each divided region, calculates an expected image defect value indicating a possibility of presence of a defect in each divided region of the print image from the image feature amount and the strength of the difference of each divided region, determines an order of detection of the image defect of the divided region of the print image.