To provide a scooter body frame with a main switch which is convenient for both an operation and a ride.

In the scooter body frame 21 with a main switch having front and rear ends in which a head pipe 211 is mounted close to the front end in the center longitudinal section X along the longitudinal direction thereof, and a steering means 22 to steer the traveling direction is provided on the head pipe 211 in the right-to-left swinging manner, the main switch 24 is formed along the center longitudinal section X, and the entire main switch is disposed closer to a driver than the head pipe 211.