The invention provides an
electronic medical record sharing method and
system based on a block chain, wherein the method comprises the following steps: a
medical health card generates an asymmetric secret key pair; the first
medical institution node performs registration
verification on the user by utilizing the asymmetric secret key, and when the
verification is passed, a first
medical institution node uses the asymmetric secret key to perform registration
verification on a user; when the verification is passed, the steps are carried out as follows: when an authorized sharing trigger is received, the first
medical institution node performs standardized
processing on the
electronic medical record, and the encrypted standard
electronic medical record is sent to a first front-loaded
database; when an authorized use trigger of the user is received, the second medical institution node generates an intelligent contract and the signed intelligent contract is issued to a block chain; a verification node, according to the intelligent contract, triggers the execution as follows: the first medical institution node conducts validity verification on the signed intelligent contract; when the verification is passed, an encrypted standard electronic
medical record is exchanged to a second front-loaded
database; the second medical institution node decrypts the encrypted standard electronic
medical record to obtain a standard electronic
medical record. According to the scheme, the sharing process of the electronic medical
record can be simplified.