A method for providing a virtual asset service based on a DID (decentralized identifier) is provided. The method includes steps of: a service providing server (a) if VADs (virtual asset addresses) are registered as a whitelist and if virtual asset transmission is requested, (a1) transmitting the virtual asset from a sender's VAD to a first VAD, (a2) if the first VAD is not registered, allowing a sender's device to request for registration of receiver's KYC, transmit or register a receiver's signature to the service providing server or in a data hub, and (3) transmit a receiver's DID to the service providing server; and (b) (i) acquiring a receiver's public key and a second VAD, or acquiring the signature from the data hub (ii) verifying the signature and the first VAD, and (iii) if the first and the second VADs are identical, registering the first VAD and transmitting the virtual asset.