The utility model discloses a novel highway track bridge beam, including the bridge body, the below both sides of bridge body all are provided with a supporting bench mound, and the upper surface bothsides of bridge body distinguish for the car, the car has travel for the top in car district, be provided with rail area in the middle of the upper surface of bridge body, one side of rail area is provided with first barricade, and rail area's opposite side is provided with second shelves wall, the track is installed near one side of first barricade in rail area's inside, orbital both sides all are provided with the track groove, and the light rail car that has gone on the track, the below of light rail car is light rail car shank, and the light rail car one side of keeping away from first barricade installs safe plate washer, the utility model discloses set up automobile district and rail area, automobile and track go on same bridge to not influenced each other, the light rail passengercan follow the cat ladder climb wait the district by bus, convenience relatively.