The measured underwater topographic data from 1958 to 2009 is used to develop the digital elevation model of the North Branch in Yangtze Estuary and to quantitatively and systematically investigate the evolution characteristics, including the plane evolution, the section evolution and the overall evolution. Results show remarkable recession and siltation of the North Branch during the past 50 years. The southern shoreline gradually moved northward and the northern shoreline was reasonably stable since 1984. The upper river channel was significantly silted and narrowed and the talweg moved northward. The middle river channel also showed continuous deposition and the shoal and trough evolved actively. The shoreline and the talweg of the lower channel moved northward.
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