The invention belongs to the field of electrified railway contact networks, and relates to a self-clinching chucking busbar elastic wire clip, which comprises a hang lever (1) used for being connected with a steel girder, and a cylinder body (5) in which a rubber elastic layer (3) is arranged, and is characterized in that: the top surface and the bottom surface of the rubber elastic layer (3) areprovided with a top plate and a bottom plate respectively, wherein the top plate serving as a top cover is fixedly connected with the top of the cylinder body (5); the bottom plate moves relatively to an inner wall of the cylinder body (5); the hang lever is fixedly connected with the bottom plate after running through the top plate and the rubber elastic layer (3); and a snap-gauge part at the top of a wire clip (6) extends to an inner bottom surface of the cylinder body (5). Through the design of the wire clip, the deadweight loadings of a busbar and a contact line is borne by the bottom plate in the cylinder through the rubber elastic layer, and the bearing area is large, so that the wire clip effectively reduces the abrasion of an overhead rigid contact network and the impact of pantograph, ensures that the pantograph operate more smoothly, has good current collection effect, reduces the wear of the contact line, has high reliability, and prolongs the service life of the contact line; and meanwhile, the parts are particularly convenient to process and install so as to contribute to reducing the construction investment and running costs of the contact networks.