On the afternoon of November 10th, the “Block Chain Lecture Hall” was held at the China Fund Museum. Zhu Min, deputy secretary of the Suzhou Municipal Committee, said at the event that the advancement of network technology and communication technology is infiltrating and changing our production methods and lifestyles, which in turn promotes the vigorous development of the digital economy. People enjoy the improvement of production efficiency and lifestyle. Convenient and social management means, while also worrying about how their information and privacy can be better protected, it is a double-edged sword, how efficiency and privacy can achieve a win-win situation, which is the development of our digital economy. Contradictions encountered. The emergence of blockchain technology has made it possible for us to find solutions.