Block file dynamic migration and recovery method based on block chain

The invention provides a block file dynamic migration and recovery method based on a block chain. The block file dynamic migration and recovery method comprises the following steps: carrying out dynamic migration and recovery on a block file based on a Hyperledger Fabric; obtaining migration information of the block file; the migration information is submitted to a Fabric SDK (Software Development Kit); the Fabric SDK sends the migration information to a peer node through a GRPC API, and waits for a return result event; the peer node reads block file information in an index database according to a migration time period, and filters a configuration block and a last block file; the peer node carries out information classification on the block file; the block file is stored in an NFS database, and a main table and an association table are generated; the peer node migrates the block file to an NFS (Network File System) shared directory; and finishing the migration. The appointed block file can be dynamically migr