The knowledge of the built environment course is rich, lively and easy. It's suitable for a teaching reform to cultivate the innovation ability of undergraduates from the four aspects:teaching, experiment, examination, and tutorial. The teaching should inspire the innovative ideas of undergraduates by questioning, finding answers and extending to research. The experiment should be open for undergraduates to implement their ideas. The examination should be coupled with research, which can guide undergraduate to innovate. Each undergraduate should finish a patent specification, research paper, experiment report, or investigation report. The tutor system should be improved to relieve the pressure of instructors and improve the pertinence and effectiveness of undergraduates training. Practice has proved that cultivating students' innovative ability plays an important role in mining and cultivating innovative talents.