The body language in vocal music art is the external embodiment of the singing psychology inside the performing subject, and it is also the body expression of the singer in the second creation after the songwriter has completed the creation of the work. The second creation of singers is the combination of song "performance" and "singing ", which is also the main form of vocal music art performance. These all need performers to show their artistic image and convey their artistic charm through the stage, while the audience, as the aesthetic subject, appreciates the works of art in various ways, and at the same time, their personal artistic taste is constantly improving. The performance of body language on stage is particularly important.