The invention discloses a method for verifying detection data source data provenance based on a blockchain technology, which comprises the following steps: first, serializing data and storing the serialized detection data in a data blockchain; then, operating the detection data via detecting personnel, generating a test report, and providing a data label; next, determining the authenticity and validity of the data according to the data status and data position recorded by the data label and the log blockchain; finally, obtaining the detailed information of the data in the blockchain through adata link in the data label, calculating a hash value, and judging whether the data are tampered with according to the hash value. Through the decentralization feature of the blockchain technology, the problem of weak data disaster tolerance is solved; and through data verification, it is quickly verified whether the data are tampered with, thereby solving the problem of data security.