It is intended to prepare noodles and noodle skins, in particular, wheat flour-free noodles and noodle skins, which comprise a soybean protein composition at a high ratio. By adding a water-extracted less denatured soybean protein to noodles and noodle skins, noodles and noodle skins containing a large amount of the soybean protein can be obtained. Further, it is possible to obtain wheat flour-free noodles and noodle skins and starch-free noodles and noodle skins.