Heishazhou Waterway is one of the main navigation-obstructing shallow waterways downstream the Yangtze River.After the phaseⅠchannel regulation project,channel conditions are improved gradually.But when encountered the flood years,channel silts seriously so that the phaseⅡof the regulation project is needed.Based on the characteristics of waterway evolution and navigation-obstruction and using movable bed models experiments,this paper researches the phaseⅡof the regulation project systematically and proposes the recommended scheme.After the scheme,river regime of Heishazhou Waterway is no obvious change;the discharge of the right channel increases and the shoal area is scoured.The channel conditions are improved effectively.