A device for determining the quality of a moving corrugated board web with at least one cover web and at least one corrugated web. A quality determination sensor arrangement, which includes a first quality determination sensor unit facing the corrugated board web, is provided for determining the quality of the corrugated board web on its first side, and a second quality determination sensor unit, facing a second side of the corrugated board web opposite the first side, for determining the quality of the corrugated board web on its second side. The device includes an evaluation unit that is in signal contact with the quality determination sensor arrangement and evaluates signals from the quality determination sensor arrangement related to the quality of the corrugated board web.