This paper comprehensively analyzes the current application status and development trends of virtual digital intelligence in broadcasting, television, and online audio-visual fields. It first reviews the origin, development, and key technologies of virtual digital intelligence, including character construction, voice generation, perception recognition, and analytical decision-making. Furthermore, it systematically analyzes the application of digital intelligence in key areas such as news broadcasting, media hosting, and e-commerce live streaming, emphasizing their significant contribution to enhancing user experience and increasing industry efficiency. Finally, this paper points out the risks associated with technological applications, including copyright infringement, reputation disputes, criminal risks, and ethical issues, highlighting the importance of developing and improving relevant laws, regulations, and ethical standards to promote the sustainable and healthy development of virtual intelligent being technology.