Abstract: In the construction of large railway station buildings, there are complex multi-specialty cooperative work. Due to the loss of geometric information in the process of format conversion of models made by different modeling software, it is impossible to extract and edit geometric parameters, which brings difficulties to the deepening of cutting materials in the construction stage. OpenBIM provides a framework for interoperable data exchange between software to record model geometry information in the form of attributes, and realistically delivered models retain editability and extraction of modeling parameters. In addition, OpenBIM 's standardized information management process also provides a solution for the full life cycle BIM delivery application of "multi-source, one-model, one-model to the end, and one-model multi-purpose". In this paper, through the case of the decoration ceiling deepening of the waiting floor of Hangzhou West Railway Station, the author introduces the transformation of the Tekla steel structure model into the editable Revit and Rhino model by IFC architecture, which provides convenience for the deepening cutting data extraction of the decoration ceiling and integrates the solid deviation data for archiving.