Binding machine

A binding machine includes a feeding device configured to feed a binding material, a movement passage through which an object to be bound to be moved to a binding executing position passes, a movable member configured to be moved from a premovement position where at least a part thereof is disposed in the movement passage, by being pushed by the to-be-bound object when the to-be-bound object moves toward the binding executing position, a winding member configured to wind the binding material fed to a given position by the feeding device around the to-be-bound object, by rotating while being transmitted power of the movable member moved from the premovement position, and a twisting device configured to twist the binding material wound around the to-be-bound object by the winding member.