New Media for Cross-Cultural Communication: Tiktok's Cultural Dissemination and Challenges in the Global Market

TikTok's global expansion momentum is strong, with its e-commerce business TikTok Shop performing particularly well in Southeast Asia and the United States, with an expected GMV of $50 billion by 2024. This paper takes Tiktok as the research background to study the success and future challenges of Tiktok, which leads to some defects of the Internet and the characteristics of social media. For example, the loss of privacy due to the development of the Internet, the imperfect protection of minors, and the uncontrollable political conflicts that will be faced across borders. This article includes the origin of Tiktok - a new Media's entry into the Internet market. Success - a new "short video" model, which immerses people. Challenges-some privacy controls, uncontrollable contradictions, and public opinions. Prospects mentioned above - innovative equipment to spread benefits to society. The article also concluded that the Internet has some problems due to its propagation speed and big data, and provided solutions such as continuous innovation.