Abstract: Cofferdam, which is the waterproof cofferdam build cushion cap and foundation underwater, can avoid the underwater work, then to promote the work efficiency. During the operation of cofferdam with steel sheet pile, pile declivity, adhesion of the pile to the adjacent one and hard to lock between piles take place usually to delay the construction speed. To ensure the verticality of piles is critical to solve these problems. Quality of Cofferdam with steel sheet pile may be guaranteed by attentive considerations of characteristics of strata, flow rate and the type of the steel sheet piles, with choosing proper styles of pile driving together. Meanwhile, to emphasize monitoring timely and then adjust the inclination of the piles in time play important role to improve the quality of cofferdam. Tianxingzhou Bridge across Yangtze River for highway and railway in Wuhan, which is under construction, has some piers underwater and need cofferdam. The 59th pier is chosen as an example for choosing and checking computations of cofferdam with steel sheet pile. By the Inside sustainer calculation and construction of the cofferdam and analysis, some experiences are proposed for other projects using for reference.