It is intended to provide noodles which require a highly shortened boiling time compared with non-grooved noodles and are still comparable to non-grooved noodles in appearance, taste, and texture after cooking. The above described problem is solved by providing grooved noodles in which a maximum diameter in the cross-section of a single noodle band is from 1.2 mm to 3.0 mm and the major outer shape thereof is an arc of a circle or ellipse, or the cross-section of a single noodle band has a rectangular or substantially rectangular shape, wherein: said noodles have a plurality of grooves formed along the longitudinal direction of said noodle band; and the total area of the section of said plurality of grooves in the cross-section of said noodle band is 20 to 50% of the area of the circle or ellipse formed by the major outer shape of the cross-section of said noodle band, or the rectangular or substantially rectangular shape of said cross-section.