Horizontal reinforcing rib plate of right front door

The utility model belongs to the technical field of automobile accessories, and particularly relates to a right front door horizontal reinforcing rib plate which comprises a rib plate frame, a plurality of groups of lightening holes are formed in the rib plate frame, a plurality of groups of staggered reinforcing ribs are arranged in the rib plate frame, and a welding attaching part is arranged on the rib plate frame and serves as a connecting end to be attached and welded to a front door. The positioning part is connected to the rib plate frame, matched with an external positioning column and plays a role in auxiliary positioning in the welding process, the multiple sets of lightening holes are linearly arranged at equal intervals from top to bottom along the outer side of the rib plate frame, reinforcing ribs are connected into the lightening holes, the overall mass of the front door assembly can be reduced through the formed lightening holes, and the overall quality of the front door assembly is improved.