With the continuous advancement of informationization, campus card management system has become an important part of the school’s core infrastructure, which plays a vital role in campus life and management at various levels. However, the traditional campus card system has certain deficiencies in security, centralized management and trustworthiness. Aiming at these problems and challenges, this paper combines the state secret algorithm and blockchain technology to construct a campus card blockchain deposit system based on the state secret algorithm. The system is based on the federation chain architecture, adopts the state secret algorithm, proposes a double guarantee mechanism for data storage, and implements smart contracts and network optimization strategies, thus achieving significant improvement in the compliance regulation, security, transaction speed and efficiency of transaction data. After stress test verification, the system performs well in coping with the high-stress environment of blockchain, and is able to efficiently process a large number of transaction requests without obvious performance bottlenecks or serious response delays, which fully demonstrates its reliability and stability in practical applications.