The invention discloses a cruciform EHV line overhead overhauling safe operation device and belongs to the field of power equipment overhaul. The cruciform EHV line overhead overhauling safe operation device comprises a telescopic connecting rod arranged between two adjacent connecting fittings. One end of the telescopic connecting rod is provided with a bottle clamping device clamped to grooves on the end portions of two adjacent insulator chains. The other end of the telescopic connecting rod is connected with a connecting plate via a bolt. The connecting plate is fixedly connected with the cross arm of a tower. The middle of the telescopic connecting rod is movably connected to a jig device capable of moving along the length direction of the telescopic connecting rod. Both ends of the jig device are fastened to the two adjacent connecting fittings. The cruciform EHV line overhead overhauling safe operation device provides a firm acting point for a maintenance worker to improve the overhead operation efficiency and safety.