Based on the current situation of CAD course teaching in applied universities and characteristics of "flipped classroom", combining with the task-driven teaching method, the research of application in "flipped classroom" teaching is carried out from three aspects which are micro class learning, classroom teaching and after-class feedback, it reforms the student assessment system to enhance student's subjective initiative in learning, and the incentive mechanism will also be improved to encourage teachers to improve the quality of micro class. The teaching reform for courses will be done around the mode of "flipped classroom" to help students adopt the engineering thinking that highlights the combination of theory and practice. As a result, students can more effectively study to lay a good foundation for future efforts on major core curriculums, which can provide references to the "flipped classroom" for other major courses in civil engineering major.