Locomotive pre-wiring frame lifting system

The invention discloses a locomotive pre-wiring frame lifting system. The lifting system comprises a main bearing beam, at least two auxiliary bearing beams, at least three lifting cross beams and two auxiliary lifting beams, where the auxiliary bearing beams are vertically arranged on the main bearing beam at intervals; the lifting cross beams are vertically arranged at two ends of the main bearing beam and a position near the middle of the main bearing beam; the auxiliary lifting beams are arranged at positions near two ends of the auxiliary bearing beam and are parallel to the main bearing beam; and a plurality of wiring frame lifting devices are arranged on the lifting cross beams and the auxiliary bearing beams. By the lifting system, the wiring frame lifting devices are arranged on the lifting cross beams and the auxiliary bearing beams, so that a locomotive pre-wiring frame can be integrally lifted to a locomotive assembly position, the locomotive can wired quickly and conveniently, and the pre-wiring efficiency and accuracy of a locomotive are improved.