A toe-piece for ski-touring bindings includes a base plate coupled to two jaws. The base plate provided with holes for fixing by screws to the surface of a ski extending in the longitudinal direction from a front tip to a rear tail-end. The two jaws situated opposite each other and symmetrically with respect to a longitudinal axis. Each of the two jaws having a transverse arm and a vertical arm provided with a respective transverse conical pin, which arms are configured to rotate about an axis substantially parallel to the base plate and to the longitudinal direction between a closed and/or open position for retaining and/or inserting and releasing the toe of a ski-boot and an open and/or closed position for releasing and inserting and/or retaining the toe.