Taking the north passage of the Yangtze River estuary for example and based on a large number of field measured data, we analyze the flow dynamics characteristics and evolution characteristics on the wide-shallow tidal estuary meandering river and explore the relationship between the fact of silting concentration in the bend section of the north channel and the evolution of wide-shallow tidal estuary meandering river. The result shows that despite the disturbance of multiple factors and the strong two-dimensional characteristics of the channel, the tidal estuary meandering river still presents bend flow characteristics and characteristics of evolution to a certain degree. The bend on the middle north channel may promote silting concentration.