In the opening ceremony of the Hangzhou Asian Games, Ant Group's digital avatar ignited the main cauldron, achieving an unprecedented feat of over 100 million people participating in the digital avatar torch relay. In the upcoming ICCV paper, Zhejiang University and Ant Group jointly released a study on generating 3D digital human motion, addressing the challenge of synthesizing complex movements over long distances for digital avatars. Through a hierarchical generation framework, they can synthesize long-term and diverse interactions between humans and objects. The Ant Digital Avatar Platform realized the online transmission of 100 million digital avatars during the Asian Games, and its wide application was made possible by technological advantages such as low-cost modeling, generative driving, highly adaptable rendering, and intelligent interaction.