VEHICLE FRAME STRUCTURE

A vehicle frame structure includes: a bumper reinforcement (12); a side member (14) that includes a first side wall (16A) on an outer side of the side member (14) in the vehicle width direction and a first protruding portion (46); and a crush box (26) that is arranged between the bumper reinforcement (12) and the side member (14) and includes a second side wall (26A) on an outer side of the crush box (26) in the vehicle width direction, the second side wall (26A) having a second protruding portion (40). An edge line (54, 56) of the first protruding portion (46) and an edge line (42, 44) of the second protruding portion (40) are provided to be continuous in the vehicle front-rear direction, and a width in a vehicle up and down direction of the first protruding portion (46) becomes wider farther away from the second protruding portion (40), in the vehicle front-rear direction.