Scattered cable saddles are divided into swing axis type, rolling axis and sliding type according to different moving friction pairs. Combined with the installation process of the swing axis type scattered cable saddle of Liangqing Bridge, this paper discusses the construction difficulties such as heavy weight, large volume, and precise structure, and provides solutions. At the same time, through the research on the swing test of the swing axis type scattered cable saddle, a method for measuring the swing angle of the scattered cable saddle is provided. Provide reference for similar projects.