The BIM technology is introduced into the waterway regulation design of Jiguantan. Firstly，taking the data classification as the starting point，we describe the modeling idea of the river terrain model；secondly，based on the modified river terrain surface，we construction the beach characteristic analysis and regulation scheme BIM model，through the integration of which， the DWG design results and three-dimensional visualization sand table of waterway engineering are formed. The conclusion is that this set of technical system can be well applied to the river evolution analysis，navigation hindrance and flow analysis，regulation engineering scheme modeling，etc. Corresponding model treatment method may serve as reference for similar projects.