This specification discloses a wheat-free grain powder composition and noodle made thereby. The wheat-free grain powder composition, after the addition of a proper amount of water and an extrusion process, can form wheat-free grain powder dough. The wheat-free grain powder dough can be made into noodle of wheat-free grain powder composition or other noodle products made of wheat-free grain powder composition. According to t this invention, the wheat-free grain powder composition without gluten per se can produce gluten-like property, such that noodle product made thereby can achieve flavor and taste not inferior to wheat-containing flour. Preferably, noodle product of this invention does not contain wheat, so consumers allergic to glutenin can feel safe to eat.本說明書揭示一種不含小麥之穀粉組成物及其製成之麵條。上述不含小麥之穀粉組成物加入適量的水,並經一擠壓程序後,可形成一不含小麥之穀粉麵糰。上述不含小麥之穀粉麵糰可進一步製成以不含小麥之穀粉組成物製成之麵條,或其他以不含小麥之穀粉組成物製成之麵食製品。根據本發明之設計,可讓本身不具筋性的不含小麥之穀粉組成物產生類筋性,使得自其所製得之麵食製品依然可呈現出不遜於含有小麥之麵粉所製程之麵食製品的風味與口感。更好的是,根據本發明之麵食製品不含小麥,所以,對小麥蛋白過敏的消費者也可安心食用。