On August 26-27, 2023, the 4th Artificial Intelligence Innovation technology workshop "AIGC Building a Digital World", hosted by CAAI, organized by the CAAI Home for members(Hangzhou Station), co-organized by the Management Committee of Hangzhou Future Sci-Tech City (Haichuang Park), was successfully held in Hangzhou Future Sci-Tech City International Talent Park. The workshop featured  cutting-edge scientific and technological achievements in many fields such as media art generation, three-dimensional scene reconstruction, and digital human and launched a broad and in-depth discussion on the future application of "AIGC" technology in more fields.