Dredging construction is one of the effective solutions to the water problems.In order to ensure the construction quality,improve the environment and develop the economy,we should grasp the key points of dredging engineering construction accurately,improve the skills of constructors,and select the suitable dredging equipments.By analysing of the Taipingkou history channel level,the natural conditions and this year’s dry season water level,we choose reasonable dredging ship and construction technique,which can ensure the smooth navigation Taipingkou channel in dry season.