VEHICLE BUMPER MOUNTING STRUCTURE

A fender front-side step portion (14f) has first and second fender front-side fixing portions (26a, 26b) that engage with and fasten a bumper spacer (24). The bumper spacer (24) is provided with: a spacer body (25); a bumper-spacer reinforcing portion (44) that extends toward a fender lower-end portion (14d) of a fender panel (14) from the bottom end of the spacer body (25); and a bumper-spacer rear-side fixing portion (50) which is disposed on the bumper-spacer reinforcing portion (44), and which overlaps with and fastens the front of the fender lower-end portion (14d). The bumper-spacer rear-side fixing portion (50) is disposed in a position further to the rear than the fender front-side step portion (14f) in the longitudinal direction of a vehicle.