Abstract: Due to the conflict between working and learning、the source structure of students and other reasons, there are some problems in open education. Such as, the low proportion of students'active learning online resources, the low attendance rate of face-to-face courses, and the difficulty of engineering practical teaching are all problems. This paper introduced the online and offline blended teaching mode to meet the individual learning needs of students, and constructed the mixed teaching mode of open university from the perspective of lifelong education. Taken the course of mechanical and electrical transmission control in engineering majors of open universities for example,constructed the blended teaching system platform and carry on the teaching practice with the help of distance education platform. The blended teaching system was a“trinity”system of“distance education platform as the basis, offline smart classroom as the auxiliary and distributed laboratory inside and outside the school as the supplement”, and had academic value and application value in the research field of the implementation of mixed teaching in open education.

Key words: Lifelong education, Open education, Blended learning, Teaching design, Teaching practice, Optimize path