The invention relates to the technical field of side cutting and discloses a side cutting device for printing ceramic stained paper. When the side cutting device carries out side cutting on the ceramic stained paper, a side cutting table and a rear side cutting table incline by certain angles in opposite directions, so that the cut side of the ceramic stained paper right above a side cutting bladehas a convex arc shaped structure, the side cutting blade carries out side cutting treatment on the convex arc shaped structure, the side part of the ceramic stained paper after side cutting has an inclined plane, the inclined plane can effectively fit ceramic after printing to realize bonding reliability, and precision after sintering is facilitated; and in addition, during the side cutting process, the ceramic stained paper at the side cutting part receives tension of the arc shaped structure, and the tension can assist in the side cutting force of the side cutting edge, so that fast side cutting is facilitated, and side burrs and other problems can be avoided to improve the side cutting smoothness and precision and ensure side cutting reliability.