Abstract: For the course of vibrations mechanics, an in-class and after-class auxiliary teaching system based on a virtual simulation APP was constructed, aiming to enhance the interaction between teaching and learning, and solve problems such as insufficient visualization of abstract concepts and weak practical sections. Considering the characteristics of the course, an APP closely related to the course content and easy to operate was developed. Relying on virtual experiments, the concept cognition was strengthened, and the classroom participation was enhanced through parametric design. The practice shows that this model has stimulated students’ autonomous exploration awareness and improved teaching efficiency.