The work "Decoding" aims to endow the bronze mask with new era and cultural connotations through modern digital technology, and to explore its source, combining modern digital technology with traditional cultural relics, so as to create a kind of "modern" technology and "primitive" The sense of mystery produced by the collision between cultures. This work uses digital technology to create a brand-new Sanxingdui bronze mask, and uses light and shadow art as a medium to display the past and present of the bronze mask. The combination of virtual and real, while enriching the connotation of cultural relics, will more vividly convey cultural information to the audience.