High-place operation safety belt hanging point device capable of being rapidly assembled and installation method

The invention relates to the technical field of power grid accessories, in particular to a high-place operation safety belt hanging point device capable of being rapidly assembled and an installation method. The high-place operation safety belt hanging point device comprises a supporting rod for a safety belt hanging rope, a transverse connecting plate and a fixing device; a plurality of telescopic rods are inserted into the supporting rod, a first locking bolt used for fixing is installed between every two adjacent telescopic rods, a fixing base is installed at the end, away from the telescopic rods, of the supporting rod, an installation insertion hole perpendicular to the supporting rod is formed in the fixing base, and the installation insertion hole is matched with the cross section of the transverse connecting plate in size and matched with the transverse connecting plate in an inserted mode. Through the arrangement of the supporting rod, the transverse connecting plate and the fixing device which can b