The invention discloses a rapid drawing method for prefabricating a bay window detail drawing based on Revit software. The method sequentially comprises the following steps: S1, setting shared parameters; S2, pre-creating a parameterized family; S3, creating a prefabricated bay window project file, designing a view template, loading each parameterized family, setting prefabricated bay window parameters, and adding placement embedded parts; S4, drawing a prefabricated bay window template drawing section and a detail drawing; S5, drawing reinforcing steel bars; s6, creating a detail list; S7, drawing a reinforcement diagram and a profile diagram of the shape of the steel bar; S8, performing size marking; S9, performing typesetting; S10, printing a drawing. According to the rapid drawing method for prefabricating a bay window detail drawing based on Revit software, modification is linked immediately, information extraction is simple and convenient, data statistics is efficient, and the drawing speed is high.