The channel regulation project has the characteristics of long coastline，large terrain change，many structures involved，and complex construction factors. There are some problems such as inaccurate engineering measurement，uncertain technical information，and redundant modeling of BIM. To solve the problem of creating a BIM model under complex working conditions of waterway engineering，relying on the waterway improvement project at the entrance channel from the Grand Canal to the Yangtze River，and based on the Autodesk platform，using Civil 3D，Revit，subassembly composer，and Dynamo visual programming，we research the application of BIM technology in waterway regulation engineering，realize the creation and editing of terrain surface，3D waterway model，and bank protection model creation，compare the method of bank protection creation，and form the application process of BIM technology in the waterway regulation process，hoping to provide references for the construction of similar projects.