A lift-up buckle device has a buckle with which is engaged a tongue through which a webbing, which is applied to a vehicle occupant, is inserted; wires that are made of metal, and whose longitudinal direction one end portions are fixed to the buckle, and that move together with the buckle; a driving portion that is connected to longitudinal direction other end portions of the wires, and that move the wires in a longitudinal direction; a wire guide that is made of metal and holds the wires in a curved state; a guide groove that is formed in the wire guide and in which the wires are inserted; and a resin member that is provided at an interior of the guide groove and abuts the wires.