The BIM technology based on Autodesk platform lacks a structural calculation software matching the modeling software Revit in the design of water transport engineering structure.A method for coupling general finite element structural calculation software ANSYS and Revit is proposed.Since Revit can only build the water transport engineering parameter model in the family environment,the Revit basic primitive types are programmed and classified to give structural properties to the loadable family.The Revit API technology is used to filter the geometric information,property information and material information of the structural model,and then the extracted information is compiled into ANSYS command stream file to realize the data transformation of structural calculation software ANSYS and BIM modeling software,and optimize the mapping grid partitioning process of ANSYS structure calculation based on Revit Boolean algorithm.Finally,the feasibility of this method in structural calculation is verified by using the main project of a ship lock.