The invention belongs to the field of overhead power transmission lines, in particular to an anti-oscillation interphase hardware tool for a double bundle conductor. The anti-oscillation interphase hardware tool for the double bundle conductor comprises a compound insulator, sub-lead spacers and grading rings, wherein one end of the compound insulator is hinged with one sub-lead spacer by a ZBD-type clevis, and the other end thereof is hinged with the other sub-lead spacer by a right-angle clevis; a turn buckle is arranged between the right-angle clevis and the sub-lead spacer, and the two ends of the compound insulator are respectively provided with one grading ring. The anti-oscillation interphase hardware tool realizes the stepless adjustment of length, can avoid the defect that a bulb falls out, and has the advantages of better stress intensity, more flexible rotation, compact structure, convenient installation and operation, wide applicable scope and the like.