Based on the teaching actualities of the engineering graphics course, the paper analyzed the students’ characteristics and habits for study. With 3D modeling technology of drawing software, new interactive teaching method has been attempted. Based on the principles of educational psychology， the students have been guided with the specific practice to solve the problem using set thinking and divergent thinking in the learning process. The method melting graphic study into daily life has been put forward , the advice and opinion on the teaching reform issues of engineering graphics has been proposed.