At present，artificial intelligence（AI）has become the biggest development hotspot in electronic information industry，and 2018 was called the year of Cambrian explosion of AI. As an important cornerstone of AI applications，AI chips attract all kinds of global chip giants and Internet companies to actively enter the field of AI chips. At present，AI is in the primary stage of development. In the future，there will be a huge space for development in materials，architecture，design concepts and application scenarios，which will bring great opportunities for the development of AI chips，but also bring many challenges.