Zhang Shousheng, a lecturing and block chain investor at Stanford University, recently said that bitcoin is the beginning of the block chain, and it is very important to find internal unity in the development of the whole block chain. Zhang Shousheng pointed out that most of the big data is related to personal information. Now, under the circumstances, personal data and information often go to the central platform. We are not personally protected by our privacy, and we have not been rewarded for providing my own data. These two problems are solved by block chains at the same time, so block chains and Artificial intelligence is bound to have a complementary relationship