For the Yangtze River Estuary area in recent years,some new reclamation projects cannot excavate the storage pit because of constraints or cost control.Through Changxing submerged breakwater engineering construction,we introduce the construction technology for integration of deep-water channel dredging and filling in the Yangtze River Estuary,and discuss the key technologies of dredging,anchoring and bowing.The construction technology does not need to set the storage pit,and the dredging soil could be pumped to the shore for land reclamation.It is very effective,resulting in a comprehensive benefit in the Yangtze River Estuary area.