Wang Juan, secretary general of the Beijing Computer Society's Digital Economy Committee, said that not all distributed data problems require a blockchain solution relational database. Enterprise information systems and some current technologies have actually solved many problems known as 'blockchainable'. Blockchain is a database technology, suitable for situations where others need to see other people's data, due to various needs such as distrust, tamper resistance, time stamping, etc. "In addition, she judges that blockchain is a need and the Internet of Things, Technologies used in cooperation with technologies such as artificial intelligence. At present, the cloud computing business of Internet companies is relatively mature. Everyone wants to promote the development of cloud computing on the blockchain, because the real large-scale blockchain network testing has just begun.