With the development of virtual reality systems for dance movements. Do a simple grooming. Designed a virtual reality system for Tai Chi exercise training. The system will generate virtual images of Tai Chi coaches and learners. Learners can observe the coach's images and imitate their movements until their own virtual images in the system and coaches. until the video action is consistent. New science and technology play an increasingly important role, and big data, artificial intelligence and virtual reality technology gradually penetrate into the daily life process. Due to the requirements of comprehensive quality education proposed by the overall national strategy, the emphasis on sports dance has gradually increased. In order to realize the diversified content expansion of sports dance, to explore the application research movements, and to excavate models with operational significance are the main strategic directions of discussion. However, due to the complex movements and repeated actions of music and dance videos, it is more difficult to conduct content-based video clip retrieval research on dance videos, and it is difficult to meet the user's requirements for video retrieval detection accuracy. The time sequence factors, granularity factors, interference factors, etc. Taking all aspects into consideration, video clips similar to the query clip are selected by comparing the similarity.