In the 21st century, with the rapid development of information processing technology, neurophysiology, non-linear dynamics, fuzzy mathematics and other disciplines, artificial intelligence (AI) has come to be widely used in many aspects. Considering AI music, music, art, AI and music media fuse together. For the perfect combination of modern technology and traditional art, a variety of technologies, including machine learning, machine perception, neural network, genetic algorithm, knowledge representation, knowledge system and so on, form a new category in AI. The advent of this technology has dramatically changed traditional music. Therefore, this paper applies AI technology to bel canto singing and combines it with AI technology, summarises the corresponding algorithm principle and analyses its development trend and characteristics with specific application cases, in order to better serve music.