To hold locking force while operating force is reduced when a band is fastened.

In a band clip having a buckle part 3 provided to protrude in a clip and a band extended from the buckle part 3, winding this band to wire harness for an automobile locked by a buckle part 3, and inserting the clip in a lock hole of a car body panel locked, a saw tooth-shaped lock tooth is provided along a lengthwise direction in the band, on the other hand, a band inserting through hole is provided in the buckle part 3, also in width direction both ends in a band draw out side, a slit is placed from a tip end to provide a tongue piece 11, in its inner surface, a lock pawl 12 locked to the lock tooth is provided, thickness of the tongue piece 11 is thinned, also in an external surface of the tongue piece 11 opposed to the lock pawl 12, a reinforcing rib 14 is provided to protrude in a width direction central part.