Medical ID (MEDI) is the medical information management platform that makes it possible to connect between service consumers and suppliers on the basis of cryptocurrency. In interaction with Medical ID (MEDI) Card of ZTO, interested parties in the medical service ecosystem, including medical staff and patients, are able to use and receive medical service. Medical information can be offered or used as ‘incentive’, and users’ medical information distributed and saved are recorded and managed in Medical ID block chain with safety.