In the management of the Yangtze River (Yangzhong part) riprap revetment,the effect of riprap revetment is detected by extracting profile lines through Hypack,but the statistical result of this method is affected by the probability,which is not unique,and will lead to disputes.For the drawbacks of Hypack,combing the construction data and actual demand,GIS (Geographic Information System) is put forward to analyze the effect of riprapping.Comparing the analysis results of Hypack and GIS,we demonstrate the superiority of GIS in reflecting the real terrain,calculating the settlement,loss and supplement amount,and showing the 3D effects,which provides a technical support for improving the construction technology,making up for the construction failure,and reducing the construction cost.