The invention discloses a novel presswork sample conformity evaluation method and a corresponding device. The device at least comprises four 2024 CCD cameras, a product expansion platform, five industrial personal computers, a large screen display and the like. The method comprises the following steps: the four cameras are used for acquiring images; the four industrial personal computers are used for analyzing and processing each printing color cell of each small image by dividing each printing color cell into more than 70 units; and one industrial personal computer is used for collecting and displaying the overproof images which are processed by the four industrial personal computers, making comprehensive statistics on the overproof conditions and obtaining the grade of the product conformity. The device can be used for detecting the darkness of the ink, and can also be used for detecting the product defects, such as graphic loss, color cast, presswork gage line deviation and the like.