Abstract: Provided is a molded pulp cushioning material that allows at least a part of an accommodation target object having a first outer surface, two second outer surfaces, and two third outer surfaces to fit in a first direction and that includes a first wall and a second wall. First support protruding portions protruding in the first direction are formed on the first wall. Second support protruding portions are formed on the second wall. The first support protruding portions are lined up in the second direction and in the third direction. The second support protruding portions are lined up in the third direction. A distance between the two first support protruding portions adjacent to each other in the second direction and a distance between the two first support protruding portions adjacent to each other in the third direction are smaller than a distance between the two adjacent second support protruding portions.