Starting from the background against which the dance in the film Warrior Lanling was born,this paper traces the dance accompanied by the music Warrior Lanling Entering the Array,concluding that the music dance is closely connected with primitive dancing.Highlighting the "mask",the film adapts and develops an ancient legend.The film not only satisfies modern audience's artistic taste,but also depicts in exaggeration the "mask",the core of the legend of Warrior Lanling.