Abstract: Architectural sketch is a core course for environmental design majors. The research focuses on the cultivation of innovative talents, with the help of modern information technology, especially the convenient conditions provided by network technology, and carries out teaching innovation design from the aspects of consolidating professional basic knowledge, implementing hands-on painting practical experience, and strengthening high-level design thinking, so as to realize the three-dimensional effect of online and offline mixed teaching, so as to better promote the transformation of teaching methods, teaching environment and teaching structure of architectural sketch course, promote the ecological and sustainable construction of design education.

Key words: Architectural sketch, Environmental design, Practical courses, Reform in education, Reproduction and copying, Imagination and creation