An automobile interior trim has a resin core material and a skin material that is joined on a surface of the resin core material. The automobile interior trim has stitches that are formed on the skin material by sewing the skin material with threads. The skin material and the stitches are cut by a laser beam to generate a cut section. The vicinity of the cut section has a structure in which threads of the stitches and the raw material of the skin material are melted by heat of the laser beam, mixed together, and solidified.