On November 1st, Xie Jun, director of the Financial Law Research Association of the Zhejiang Law Society, published an article in the Economic Daily that "Don't let the concept of speculation take the blockchain." The article pointed out that the blockchain technology has not yet moved from the laboratory to the popularization and application stage, and there are still many problems to be solved, such as the problem of trust loopholes, the security fence, the corresponding scene setting and the smooth data exchange, etc., in the blockchain from the financial field. Applications should be straightforward and resolved in the process of extending to other areas. In the face of the concept of blockchain being hyped, the relevant functional departments should hold the supervision and control of the sword to suppress the blockchain speculation, market manipulation and violation of laws and regulations, create a good technical solution, and use the rule of law to pull it. Return to the original track and play its role in the deep integration of industry and industrial technology upgrade. For investors, it is also necessary to recognize the status quo of blockchain technology development, understand the current application and the fact that there are few substantive investment contents, and do not blindly pursue hot spots to avoid being "cutting leeks."