Abstract: There exist in the experiment teaching of mechanical manufacturing basis the following problems, such as less class hours for experiment teaching, limited number of laboratories for use, out of synchrony between experimental classes and theoretical classes, shallow understanding of the experiment by students, etc. In view of this situation, a systematic "online + offline" mode for experiment teaching is designed in terms of production of structured micro-course, online platform construction, and offline support. How to realize this teaching mode is also analyzed. The teaching practice shows that this mode can not only balance the advantages of traditional teaching and online teaching, but also solve existing problems. The experiment time becomes flexible and the experiment content is extended, effectively stimulating students' interest and initiative in learning, instructing students to internalize knowledge, and improving the quality of experiment teaching.