Abstract: With wide application of internet technology and introduction of‘internet+’concept，combined with teaching concept of‘flipping classroom’，teaching mode of integrated experimental course of microbial sewage treatment based on‘internet+flipping classroom’was put forward.‘Biological Aerated Filter（BAF）Experiment’was taken as an example to carry out innovative teaching design on integrated experimental course of water pollution control engineering for environment specialty in colleges and universities.It mainly include making full use of advantages of‘internet+’，and online courses or teachers to record video audio and animation for students to learn in advance，through use of Blackboard online teaching platform to urge students to complete pre-class video learning，exercises，and learning status evaluation，reasonable teaching activities were organized to enhance experimental teaching effectiveness in classroom.Finally，a questionnaire was designed through instant evaluation system and published to students through QR code or web link to feedback teaching effect of course.‘internet+flipping classroom’ teaching mode made it easy for students to use a computer or cell phone to learn while engaging in online discussions.Through teaching of‘internet+flipping classroom’mode，teaching effect was improved，and enthusiasm and initiative of students were stimulated，that could provide reference for reform of experimental courses in colleges and universities.