Financial writer Xiao Lei issued a text "The Mainland of Hong Kong at the same time, China's official digital currency is ready to go." Xiao Lei said that China has a clear development idea and execution logic on blockchain and digital currency, and has begun to implement it centrally. Mu Changchun introduced the implementation of China's official digital currency in Hong Kong, and the central bank signed a strategic agreement with Hong Kong financial institutions. At the same time, the Hong Kong Securities Regulatory Commission issued the rules for the supervision of virtual asset exchanges. This is no coincidence. This is China's blockchain number. Another layout in the currency field, that is, Hong Kong's important role in this field has become clear.