The research is carried out on the regulation measures of the continuous curve shoal dangerous waterway of Dahuatan in the canalized section of the Xiangjiang River. The mathematical model of two-dimensional flow and ship maneuvering motion of project river section is established using unstructured mesh. After verifying the reliability of the model through the actual measured water level of the prototype，the main parameters such as the water depth，flow field，rudder angle，drift angle，and minimum speed of the ship model control of the engineering river section under different flow conditions are calculated. The results show that without the implementation of cut-off and waterway regulation buildings in project river section，the navigation standards can also be met by optimizing the waterway route，broadening the navigation width，and combining with appropriate dredging and revetment engineering measures.