Abstract：Deepwater channel is usually geomorphology in deepwater zone,which is not only transport way of deepwater gravity flow sediment,but also is mainly sedimentary place. There have been abundant fruits on gravity flow channel for more than 60 years. The research process and latest achievement are reviewed,characteristic and mechanism of deepwater channel have been summarized in this paper. The gravity flow channel could be divided into complex channel,vertical aggradation channel,migrational channel and small bifurcated channels. The process of complex channel is closely related to evolution of gravity flow. Channel axial deposits,debris flow/slump deposit,channel-levee system and migrational channel develop in complex channel. Sinuous migrational channel secondary circulation of gravity flow was formed. Strait migrational channel is interaction between gravity flow and contour current. The direction of work on gravity flow channel in the future always results from were proposed as follows: (1)more way and method comprehensive research; (2)systematic comparative study on mechanism and mainly controlling factors; (3)reinforce to work on the reservoir distribution.
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