Abstract: Electrical Technology is a professional basic course for majors of electronic information，agricultural water conservancy engineering，automation control，vehicles and other majors in colleges and universities，which needs close combination of theory and practice.However，in the process of Electrical Technology teaching，there are some problems，such as lack of practical，poor effect of practice preview and so on.Taking temperature and humidity monitoring of agricultural greenhouse as an example，combined with requirements of modern agriculture，teaching reflection was carried out.Combined with developed Internet technology，a teaching mode was constructed based on flipped classroom to probes into teaching of theory and experimental teaching，improve teaching system of the course，adjust teaching assessment methods，and further improve teaching quality.