This teaching experiment aimed to discuss art of light and shadow by setting project design of "light and shadow constitution" in 3D constitution to extract elements of architecture, such as wall, ceiling and so on, as design topics. The paper introduced the curriculum and system construct of "light and shadow constitution" and studied the relation between light and shadow and time, color and shape through multi-subject exercises. This teaching model has distinct positive effect on students' understanding of feature of art of light and shadow, cultivation of logical thought of shape, enrichment of visual experience and formation of good aesthetic taste.