Abstract: In the process of microteaching and training, virtual simulation technology is introduced to solve the problems that the real classroom training of normal school students can’t meet the diversified classroom situations and low tolerance of trial error, and increase the sense of reality and scene of training. Based on modern microteaching theory, instructional design theory and feedback mechanism, a virtual simulation platform of microteaching is constructed, which enables normal school students to conduct training in a flexible and independent manner according to their own needs. Using virtual reality technology and speech recognition technology, a virtual simulation teaching platform is developed, which covers the selection of scenes, the introduction of courseware, the setting of questions, the questioning of students and the emergency treatment. The platform that is applied to the microteaching training course of normal school students’ teaching skills has achieved good results.