A vehicle pedal support system includes: a pedal bracket mechanism that is disposed between body-side components and pivotably supports a vehicle pedal, the body-side components being displaced relative to each other so that a mutual distance between the body-side components in the vehicle longitudinal direction is decreased when an external force equal to or greater than a predetermined value acts on a vehicle front section; and a link mechanism that connects a hydraulic pressure conversion section to an upper-end side of the vehicle pedal in a relatively rotatable manner. When the link mechanism comes into contact with a non-deformation portion, the link mechanism is pressed toward the vehicle front section, and thereby the depression surface of the vehicle pedal is rotationally displaced about the pivot toward the front of the vehicle.