Abstract: After completion of Danggangshan Hydropower Project construction, the temporary river crossing cable was erected for the dismantle of construction cable cranes. In the dismantle of the cranes, due to the twisting of the twin temporary cables, the guide pulley was broken due to too large bearing and resulted in low efficiency. In addition, the cables sagged too much and influenced the safety of the structures below. For this reason, the river crossing structure of the temporary bearing cable and technology were improved, i.e, fixing the temporary cable on the pulley of the cable crane by the lifting rope and dragging the temporary bearing cable crossing the river through the cable crane car and the twin temporary cables. The practice showed that the technology reduced the bearing of windlass and the twin cables and the sag of the temporary river crossing cable, shortened the time of the temporary bearing cable winding, which has the reference for improving the the crane dismantle efficiency and reducing the safety risk.