VEHICLE BODY STRUCTURE OF VEHICLE

Provided is a vehicle body structure of a vehicle in which a side door opening is larger. The vehicle body structure suppresses the buckling deformation of a hinge column in an attachment portion of a flap reinforcement during a collision such as retreating the flap reinforcement, and is characterized in that a reinforcing member (60) is arranged at a position in the closed cross section of a hinge column (30), and the reinforcing member (60) and the mounting part (23b) of a baffle reinforcing member (20) are overlapped in the vertical direction; the reinforcing member (60) is provided with a main body section (61) which is spaced apart from the hinge column (30) and extends in the vertical direction of the vehicle; a front flange section (62) which is located at the front part of the main body section (61); a side flange section (63) which is located at the rear part of the main body section (61); a front ridge section (X1) which is located between the main body section (61) and the front flange section (62)