This study proposes a computerized information encryption storage and trusted traceability model integrated with blockchain technology, aiming to solve the problems of insufficient security, transparency and traceability in traditional information storage systems. The system designs a decentralized information storage structure and encryption mechanism to ensure the immutability and privacy of data. At the same time, combined with computerized processing technology, the model realizes efficient encryption of information during storage, ensuring the secure transmission of data between different nodes. The model establishes a full-process traceability mechanism for information from generation to transmission and storage. Users can track the source and change history of information based on blockchain, significantly improving the accuracy and credibility of information traceability. The model introduces the SHA-256 hash algorithm for data encryption, and combines symmetric encryption and asymmetric encryption hybrid mechanisms to enhance security. The model simulation verifies the performance of the system by setting scenarios with different data scales, different numbers of nodes and different access frequencies. The simulation results show that the model can still maintain a high response speed and data consistency when the data volume is large, proving the scalability and reliability of the model. Precise data analysis further shows that the designed system is superior to traditional storage solutions in terms of information integrity, privacy protection and traceability, and has broad application prospects.