Abstract: The Changjiang Estuary has a morphologic pattern that is characterized by three-order bifurcation and four distributary channels discharging into the sea.More stable hydrological process,richer riverine sediment supply and mesotidal environment are beneficial to formation and development of branching type in the Changjiang Estuary.Situation and change of the branching portion play a key role in evolution of downstream tributary channels.A review on change process of the branching portion in the south-north branches,the south-north channels and the south-north passages is made.There are scene common features in these portions.A combination mode of the branching portions that consists of 2～3 "plates" representing sand bodies and a series of "trenches" representing passways or ditches is summarized.Merging or separation of the plates and scouring or fiLling-up of the trenches have a significant influence on situation of bifurcation and evolution of tributary channels.