Abstract: This paper introduced a new method toestablish the building information model (BIM) of curtain wallwith high level details based on Revit and its visual programing plug-in (Dynamo). By taking the curtain wall beam, column, and other supporting aluminum alloy profile components as a nested family of curtain wall panels, the position and size relationship of each nested component are correctly constrained by reference plane and correlation formula, and the processing characteristics of profiles are added by hollow stretching. By doing above, the specifications of each component in the curtain wall panel are the actual processing specifications, and the end of each profile reflects the main features at the same time. With the help of the visual programming plug-in dynamo of Revit, the parameter information of model components can be automatically added in batches . This modeling method is successfully applied to a curtain wall project, and the accuracy of the delivered model reaches lod400 which provides an effective model basis for the application of BIM Technology in subsequent production process, material ordering and procurement, and construction management.