On November 17,2019, the twenty-one th China International hi-tech Fair concluded successfully at the Shenzhen Convention and exhibition center with the theme “Jointly build a vibrant bay area, work together to open up and innovate”. A large number of cutting-edge technology concentrated appearance, a shining release of innovative results, a field of"Brainstorming" intensive performance, leading the industry trend of development. With the new wave of technological revolution, China's new generation of information technology, represented by artificial intelligence (AI) , fifth generation mobile communication technology (5G) and blockchain (BC) , is storing energy at an unprecedented speed, to promote high-quality economic development.