First-class undergraduate course construction is an important measure of higher education reform.And digital education is a product of the development of talents to meet the needs of the times.In order to adapt to this development trend,In light of the features of online teaching,the existing problems are analyzed and the corresponding measures are put forward to promote the intention of continuous use of online teaching.And the college students should be guided to strengthen their autonomic learning and be conducive to self-development by Continuous improvement to build a first-class online course.The Mechanical Specialty in applied colleges and university can use for reference on implementing the new teaching concept.