In today’s era of rapid technological development, this paper conducts an in-depth and detailed discussion on the extremely critical auxiliary role of text-to-speech technology in the process of AI anchor video generation. First of all, the relevant research background and the important significance contained therein are emphasized, and the principles, various tools used, and the advantages and disadvantages of text-to-speech technology are deeply analyzed. Then, the technology is discussed in detail in many aspects, such as enriching the reserve of voice materials, significantly improving the degree of adaptation between voice and picture, vigorously assisting the creation of multi-language versions, and effectively optimizing the overall production process. The strong driving force given to AI anchor video generation. Finally, a comprehensive and in-depth analysis of a series of challenges currently faced is made, and a forward-looking outlook on its future development direction is made. Its purpose is to provide a comprehensive, in-depth and highly reference-worthy material for research and exploration in related fields and practical applications.