CG usually refers to digital works and generally serves the following industries: advertising, film and television, animation, comics and games. From pure artistic creation to advertising design, the content can be two-dimensional, three-dimensional, still or animated. With the formation of a series of related industries of visual design and production with computers as the main tools. Now the concept of CG is expanding with the expansion of application fields. Nowadays, the term CG includes both technology and art, and it covers almost all visual art creation activities in the computer age, such as graphic design, web design, three-dimensional animation, film and television special effects, multimedia technology, architectural design based on computer-aided design, industrial modeling design and so on. Internationally, it is customary to call the field of visual design and production by computer technology CG-CG and media culture produced by virtual reality technology can both belong to CG category. CG industry has formed a considerable technology-based visual arts creative economy industry.