Recent years have witnessed an expanding adoption of Building Information Modeling (BIM) in construction industry. The one of main advantages regarding to BIM technologies is to create the 2D shop drawings automatically from the 3D BIM models directly. However, there are number problems regarding to 2D shop drawings when engineers use the BIM commerce software. It usually takes time and cost to solve those problems special for general contractor during the construction phase. In order to solve the above problems, the Autodesk Revit application programming interface (API) is selected and utilized for programming for automated drawing modules for general contractor. Therefore, the objectives of this study is to develop automated drawing model and system integrated BIM software to enhance the automated 2D shop drawing illustration from 3D BIM model directly. The proposed model and system are then applied in selected polite test of a building project in Taiwan to demonstrate the proposed model and system. The test results demonstrate that, the proposed system can be an effective tool for automation by utilizing BIM API development.