Abstract: Based on teaching practice in the courses of Engineering Graphics and 3D CAD, a new method integrating traditional 2D drawing with modern 3D modeling is proposed, which uses 3D CAD modeling principle, method and modeling processing in the understanding of 2D view. The method is superior for students to rapidly recover the solid special object shape from 2D view, and to understand the optimal solid modeling and processing. It lays foundation for 3D CAD modeling design.

Key words: engineering graphics, 3D CAD, integration between traditional content and modern content, drawing and modeling