To provide a commercial wire lock fixing metal fitting for fixing and holding a commercial wire lock to a bicycle fork irrespective of a stopped parking state or a traveling state while preventing a wire from spreading in a lateral direction and facilitating locking/unlocking.

A rotating ratchet hinge 3 which is rotatable is provided at the other end of a first fitting 1 having a fork part fitting 7 for mounting the first fitting 1 to a bicycle fork part F. A wire base part very close to a cylinder body 10 of the commercial wire lock is fixed by a holding part 6 located at the other end of a second fitting through a hinge. When the cylinder body 10 is locked and stored by the rotation of the rotating ratchet hinge 3, it is rotationally moved to two lateral and upper side faces. Further, since the axis direction of the hinge is arranged in the same horizontal direction as a wheel surface, the wire mounted to the second fitting and the holding part 6 is also stored in the same horizontal direction as the wheel surface.