Method for indexing medical data in block chain

The invention relates to the technical field of medical data indexing, and discloses a method for indexing medical data in a block chain, and the method comprises the steps: carrying out the preprocessing of original data, generating an electronic index of the original medical data through employing a mode of pre-embedding a data fingerprint for the original medical data, and obtaining the electronic index of the original medical data. And the generated index is registered in the smart contract, and the index and the information of the original data owner referred by the index are stored. And finally, the index is stored in an index database module, so that the index becomes an operable object in the system. Therefore, the indexing function of the medical data is realized in the block chain system under the condition of not contacting the original medical data, the risk of leakage caused by a large amount of circulated original data and the original data is reduced, and the effective management of the medical