This project aims to explore the application of blockchain technology in the secure storage and sharing of archive information, focusing on the optimization of storage data, the optimization of sharing data and the design of encryption algorithms. By introducing Hyperledger Fabric as the blockchain platform, combined with asymmetric encryption algorithms and hashing algorithms, the project effectively improves the security and integrity of archives. During the implementation process, the archive processing time was shortened from an average of 3 days to 1 day, increasing the processing efficiency by 66%; the number of manual interventions was reduced by 80%, the number of archive shares increased by 150%, and the user engagement increased by 150%. The success rate of information integrity verification reached 100% through digital signature and time stamp technology. User satisfaction increased from 60% to 90% before implementation, and archive search time was shortened to 5 min, with an 83% increase in search efficiency. These results show that blockchain technology has significant advantages in the security management and sharing of archive information, can effectively deal with the risk of data leakage, promote information sharing and cooperation, improve user experience, and provide a new solution for the future management of archives.