Abstract: Under the influence of the current epidemic situation, the online teaching method of Digital Circuit course is explored according to the requirement of “no suspension without suspension” from the Ministry of Education. Firstly, the network course platform is constructed by combining with the training orientation of measurement and control technology and instrument professionals, and the course teaching program is analyzed and determined. Then, cloud classroom teaching is carried out, and teaching contents such as course content, key analysis, assignment and correction, after-class discussing and Q&A are completed. Finally, the teaching process is improved through teaching supervision, student questionnaire and other feedback methods to ensure the teaching quality of cloud classroom. It can provide reference for the development of others courses in the cloud.