Fan Yifei, Deputy Governor of the People's Bank of China, wrote a few days ago and disclosed some reflections on the issue of digital currency by the Central Bank: first, circulation through double-tier model of "Central Bank-acting commercial institutions"; second, second, circulation of the digital currencies of China's Central Bank through account loose coupling, adhering to the centralized management mode; third, the current stage of the Central Bank digital currency design should focus on M0 instead of M1, M2 alternatives; fourth, the attitude towards Central Bank digital currency's smart contracts should be remained cautious.