VEHICLE UNDER STRUCTURE

The invention provides a vehicle body structure capable of suppressing rotation of a vehicle generated during an offset collision. Comprising a side frame (1) extending in the front-rear direction, and a lower member (4) located on the outer side of the side frame (1) in the vehicle width direction and extending in the front-rear direction. In addition, as the lower member (4) moves away from the vehicle compartment in the front-rear direction, the inner inclined portion (4a) approaches the side frame (1), and a lower protruding end portion (4b), which is the protruding end portion farthest from the vehicle compartment, is connected to the side frame (1). 本发明提供一种能够抑制在偏置碰撞时产生的车辆旋转的车身构造。包括沿前后方向延伸的侧车架(1)和与侧车架(1)相比位于车宽方向外侧且在前后方向上延伸的下构件(4)。另外，下构件(4)随着在前后方向上远离车室而使内侧倾斜部(4a)与侧车架(1)接近，将距离车室最远的突端部即下突端部(4b)与侧车架(1)连结。