A driving position adjusting apparatus for a vehicle comprises a driver's seat provided on a floor panel of a vehicle compartment, an operational pedal, such as an accelerator pedal, which is operated by a driver seated in the driver's seat, an incline-face portion which is provided on the floor panel, on which a heel of the driver operating the operational pedal is placed, the incline-face portion having an upper face which is inclined so that a front portion thereof is located at a higher position than a rear portion thereof, and a heel-placement height adjusting device which adjusts a height position of the driver's heel placed on the incline-face portion at least by moving up or down the incline-face portion.