A grooved noodle includes a noodle string a cross section of which has a parallelogrammic or rectangular basic contour, two grooves extending along the noodle string are provided at symmetrical positions with respect to a center of the cross section of the noodle string, in the cross section of the noodle string, each groove has a pair of first sides that face each other and extend from an opening plane of each groove toward an inside of the noodle string, and a pair of second sides that respectively extend from ends of the first sides in bending directions so as to come closer to each other and are interconnected to form a terminal end of each groove, and a distance from the terminal end to the opening plane of each groove is larger than ½ of a width of the noodle string in a grooving direction.
