Su Xiaokang, head of application research and development of Weizhong Bank, said that I personally believe that blockchain can drive new business models in the data exchange and IoT industries. He pointed out that the future is an era of "5G + Internet of Things", in order to extend many scenarios and modes. The technical characteristics of blockchain is to play a connector for multi-party cooperation. "Blockchain + Internet of Things" may be a future direction . In addition, the privacy protection and exchange of data. With more and more data generated by various industries, people's demands for data privacy protection are becoming stronger and stronger, and government regulations on related aspects will become more stringent. From enterprises to individuals, they will attach great importance to data access mechanisms. Blockchain also has many possibilities for development in this regard.