The invention provides a packaging structure for a gridiron. The packaging structure for the gridiron comprises the gridiron. The gridiron is provided with a plurality of supporting legs and a flat base plate. The supporting legs are perpendicularly or obliquely fixed to the same side face of the base plate. The packaging structure for the gridiron further comprises a foldable thin plate. Through holes allowing the supporting legs to penetrate through are formed in the positions, corresponding to the supporting legs, of the thin plate. The supporting legs penetrate through the through holes from bottom to top. The base plate is arranged under the thin plate. The thin plate is foldable and is provided with at least two supporting parts. The supporting parts are folded towards the supporting legs. During packaging, the top ends of the supporting parts abut against the two opposite vertex angles of the interior of an oven correspondingly, and the bottom of the base plate is directly or indirectly attached to the bottom surface of the interior of the oven. According to the packaging structure for the gridiron, the gridiron can be fixed in the oven through the supporting parts and bearing parts which are obtained on the thin plate through folding, operation is easy, and the performance is reliable. The supporting parts abut against the vertex angles of the interior of the oven, so that an up-down positioning effect is achieved; the supporting legs of the gridiron penetrate through the through holes, so that a left-right positioning effect is achieved; and the gridiron and the thin plate can be combined through the bearing parts, and thus carrying is convenient.