A battery arrangement structure for a vehicle that concentrates a mass of a vehicle body while effectively making use of a space in the vehicle body. The engine of the vehicle is mounted on a vehicle body frame, an intake device which includes a throttle body is connected to the engine, and a battery is arranged inside a pair of left and right upper frames which constitute the vehicle body frames. The throttle body is arranged on either one of left and right sides with respect to a vehicle body center line which extends in the longitudinal direction of a vehicle body, and the battery is arranged on anotheer side with respect to the vehicle body center line.