CAR BODY FRAME STRUCTURE

PROBLEM TO BE SOLVED: To prevent bending of horizontal reinforcing materials of a frame by a shock at offset collision time of a vehicle, and to prevent breakage of an important part positioned in the vicinity of the horizontal reinforcing materials. SOLUTION: This car body frame structure is provided with a plurality of horizontal reinforcing materials 5 to 10 extending in the width direction of a car body in a floor part of the car body, a plurality of vertical reinforcing materials 4 crossing with the horizontal reinforcing materials 5 to 10 by extending in the longitudinal direction of the car body, and a pair of edge reinforcing materials 2 and 3 arranged on the left and right ends of the car body, and connected with an end part of the horizontal reinforcing materials 5 to 10, and is characterized by supporting the horizontal reinforcing material 8 arranged in a position for receiving an end part 4m of the vertical reinforcing materials 4 from the opposite direction of the vertical reinforcing materials 4 by a support material 20 fixed to the edge reinforcing material 3.