A method for managing transaction is performed in a blockchain-based computing system and includes receiving a request for processing a first individual transaction from a client terminal, generating a batch transaction by aggregating a plurality of individual transactions including the first individual transaction, processing the generated batch transaction via a blockchain network, such that a status record associated with the batch transaction is recorded in the blockchain, and providing the client terminal with an identifier of the batch transaction and index information on the first individual transaction, wherein the status record associated with the batch transaction includes a first status record associated with the first individual transaction, and wherein the index information on the first individual transaction is determined based on a location of the first status record in the status record.