The quad -bundle jumpers are commonly used in 500 kV power transmission lines. With the increasing restriction of transmission line corridors, transmission lines need to steer clear of the residential areas and buildings, which may result in the increase of tension angle towers in the lines’ design as well as the increase of loads in jumper installation and construction. At present, the on-tower capacity relation method is widely applied in the jumper installation, which has low efficiency and huge aerial operation workload. With several project practices, it shows that with the length accurately calculated in design process, the jumper is pressed and marked in material station, and transported to the site for suspension installation, which can greatly improve the efficiency of construction, reduce the aerial workload, as well as ensure the esthetics of process.