ABSTRACT
In recent years, China has been vigorously promoting the construction of medical informatization, with ever improving share and interoperability model of medical and health care big data centering on electronic health records. Current problems in the management and utilization of electronic health records were found in such aspects as hidden risk exposure in the centralized data storage, poor access in data sharing, and poor distribution of rights and interests. These problems can be tackled effectively by the distributed storage, efficient secret data sharing, on-demand collaborative intelligent computing and other features of blockchain technology. The blockchain technology is still immature to use in medical archiving, and large-scale application of electronic health archives blockchain faces challengs in technology, governance and operation. The authors suggest to enhance scientific research on blockchain technology, improve the construction of blockchain application enabling system, and to launch the pilot project of health archives blockchain.