This specification describes techniques for managing assets in a blockchain. One example method includes receiving, from a target user recorded in a distributed database of a blockchain network, a user input including a request to transfer an asset object including a digital asset corresponding to a physical asset associated with the target user, in response to receiving the request, determining a contract object based on an asset type of the asset object, processing the asset object using the contract object to generate a plurality of target objects, deleting address information from the plurality of target objects, and adding the address information to asset receiving objects corresponding to the plurality of target objects.