Abstract: A digital currency management method and a digital currency node apparatus for a digital currency network based on a block-chain are provided. The method includes: determining whether a transaction is generated, performing a proof-of-work mechanism if the transaction is generated. The method also includes: not performing the proof-of-work mechanism if no transaction is generated. In addition, the proof-of-work mechanism includes: obtaining a pre-block and calculating a pre-hash value of the pre-block; and finding a current verification value according to the pre-hash value. Accordingly, a newly generated transaction could be processed immediately and the waste of computing resource in the digital currency network could be reduced.