The Fourth Nanjing Yangtze River Bridge is a two-tower, three-span suspension bridge with the main span of 1 418 m, where in the catway with no wind cable and no vibration suppression mechanism for construction of the superstructure is a three-span continuous catway system. Structural design, erection, adjustment and demolition of the catway are systematically described in detail in this paper, which could provide great reference for catway structural design and construction of similar suspension bridges.