POWER-SUPPLY STRUCTURE FOR SLIDING STRUCTURE

An object of the present invention is to smoothly turn a swinging member such as a sliding structure-side swinging member even if a pressing load in an axial direction of a wire harness acts midway through opening/closing operation of the sliding structure. To achieve the above object, a wire harness (2) is routed in a harness supporting member (17) on a side of a fixing structure (19) from a swinging member (1, 1') at a sliding structure (16) side, the swinging member (1, 1') includes a harness holding portion (4) in a lateral direction for holding one end (3a) of the wire harness (2), and a turning shaft (5) or a turning bearing in a vertical direction which is offset from the harness holding portion (4) in a radial direction of the harness holding portion (4), the shaft (5) or the bearing is located closer to one of the sliding structure (16) and the fixing structure (19) than the harness holding portion (4) when the sliding structure (16) is fully opened, and the harness holding portion (4) is located closer to the one of the sliding structure (16) and the fixing structure (19) than the shaft (5) or the bearing when the sliding structure (16) is fully closed.