Aiming at the privacy and security issues of students in teaching practice, this paper proposes a protection method based on virtual reality technology. First of all, the teaching content and teaching effect are accurately divided into teaching indicators and content. Then, use virtual reality technology to construct teaching plans and exam content. Finally, in practical application in teaching, students’ academic performance and understanding are tested. The results show that with the assistance of virtual reality, the accuracy of privacy recognition, the security of teaching practice, and the teaching effect are better than ordinary teaching methods, with obvious advantages, and the average improvement rate is 20%. Therefore, virtual reality technology plays an extremely important role in teaching practice, which can accurately predict and optimize privacy leakage problems in teaching and protect students’ information security. Therefore, virtual reality technology can play an auxiliary role in teaching practice, not only promote the improvement of teaching effect, but also optimize the overall performance and promote the development of teaching.