A buffering member is interposed between an outer corner of a packaged article and an inner corner of a packaging box. The buffering member includes a base sheet and a plurality pairs of blocks. The base sheet is foldable along a folding line. The plurality of pairs of blocks are arranged along the folding line at predetermined intervals. Each block of the pair of blocks is bonded on one face and the other face of the base sheet on both side of the folding line. The pair of blocks is combined via a combined face so as to meet the outer corner when the base sheet is folded along the folding line. At least one of the combined faces is provided on the one face of the base sheet and another combined face is provided on the other face of the base sheet.