Based on the characteristics of the Xiangjiaba-Shanghai ± 800 kV UHVDC transmission line，this paper introduces the pulley hanging scheme of the tension stringing method called“one-drag-four plus one-drag-two”. In this scheme the L-shaped eccentric joint-board is designed to avoid the unbalance problem of the stringing pulley block.Construction practice demonstrates that the L-shaped joint-board has high efficiency in application and can solve several key problems in stringing construction. The design of this scheme and construction process can provide a reference to relevant technicians.