Uni-Cloud is a distributed blockchain storage network that uses high-tech such as blockchain and 5G to record and store data, and improves the basic space of data by increasing the value of data itself. Through the unique incentive technology of the blockchain, the Uni-Cloud distributed server can identify how much storage space the user server has contributed, and give the corresponding UC as a block reward according to the contribution rate. As a distributed storage system integration system, through the design of smart contracts Record and save the digital information and content of all financial transactions based on the UC protocol, improve confidentiality and security, and realize the assetization of personal data and distributed storage of commercial data.