Digital multimedia technology is a variety of comprehensive information technologies with images, sounds and videos as carriers. Dulcimer teaching includes comprehensive dulcimer music education that develops dulcimer music knowledge, appreciation and creativity. The main purpose of this article is to study the application of digital media VR technology in dulcimer education. This paper adopts exploratory research methods, uses knowledge in the field of virtual reality technology, analyzes the advantages of actual teaching cases, and proposes the design of desktop computer virtual reality research programs for targeted teaching cases. And use software to display in virtual reality. The use of digital multimedia features to increase the flexibility of instructional approaches to the dulcimer has greatly facilitated the instruction of the dulcimer and promoted students' interest in learning the dulcimer. The outcome of the paper's trials indicates that with the implementation of digital media VR skills. students' interest in dulcimer has been greatly improved, their enthusiasm has increased by 25%, and thedulcimer teaching model has also been greatly improved. Satisfaction with teaching increased by 32%.