Aiming at the security issues such as data leakage and tampering faced by experimental data sharing, research is conducted on data security sharing under multiple security mechanisms such as mixed encryption and secure storage on the blockchain against leakage, as well as experimental data tampering identification and recovery strategies based on an improved practical Byzantine fault-tolerant (PBFT) consensus algorithm. An integrated scheme for secure storage, sharing, and tamper resistant recovery of test data is proposed to address the contradiction between the security and sharing of sensitive data. Provide support for the security application of blockchain in experimental data management.