A guiding device for guiding a belt of a belt-driven conical-pulley transmission. The device includes a first guiding section and a second guiding section that is spaced from the first guiding section, and between which the belt is guided in a running direction. The guiding sections have a longitudinal extent that corresponds to the running direction of the belt and a transverse extent that is perpendicular thereto, and lateral edge sections that delimit the guiding sections in the transverse direction. At least one guiding section has at least one longitudinal rib that extends in the longitudinal direction and that is positioned apart from the lateral edge sections in order to improve the guiding device structurally and functionally.