Abstract:  Supported by the currently rapid development of virtual reality technology, in order to improve the sense of drawing set as the goal in engineering graphics course, the augmented reality technology was introduced into curriculum teaching and auxiliary teaching system on mobile devices as application platform was developed. In this system, the real scene of plane view was combined with virtual 3D models. The coupling and interaction experience reality was enhanced by a high level visual superposition. The sense of drawing can be set up as an efficient conversion bridge between the imaging and three-dimensional solid. By using such bridge, the acceptable degree of abstract three dimensional model and the learning interest were promoted. With the lecture and the guidance after class, students will consciously strengthen sense of figure interpretation in the view of cognitive function. The reform of teaching mode and resource discovery will help to promote the development of engineering graphics education in future.

Key words: engineering graphics, augmented reality, mobile devices, teaching system