A structure for protecting a brake pedal of a vehicle from impact, the vehicle having a cowl crossbar provided with a pair of spaced apart connection holes, includes a supporter provided with a pair of converged brackets, each of the converged brackets provided with connection holes couplable with the connection holes of the cowl crossbar by using bolts, and a plurality of supporting protrusions provided on an end of the supporter, the supporting protrusions preventing the brake pedal from moving toward an occupant of the vehicle in the event of a collision.