A vehicle structure body includes: a vehicle interior member; an exterior member; and a fastening portion in which a first fastening seat of the vehicle interior member and a second fastening seat of the exterior member are fastened and fixed to each other in a state of being disposed to face each other. A first fastening part to which a first fastener is attached with a shaft portion of the first fastener, and a second fastening part to which a second fastener is attached with a shaft portion of the second fastener are provided adjacent to each other. An input direction of a shear load that is applied to the shaft portion of the first fastener in an orthogonal direction and an input direction of a shear load that is applied to the shaft portion of the second fastener in an orthogonal direction differ from each other.