The invention is suitable for the technical field of digital
certificate management, and particularly relates to a block chain digital
certificate management method and
system supporting a
full life cycle and
data security, and the method comprises the steps: receiving a creditor-debt relationship uploaded by a creditor or a debtor, recognizing a core attribute, and storing the core attribute; wherein the core attributes at least comprise a
subject identifier, a debt amount, a performance period and a right obligation type; creating child nodes in one-to-one correspondence with the core attributes, collecting real-time values of the core attributes, writing the real-time values into the child nodes, determining data sources, creating father nodes in one-to-one correspondence with the data sources, mounting the child nodes into the father nodes, and generating the
verification tree. According to the invention, by configuring the circulation restriction rule, the abuse and illegal transfer of the digital
certificate can be prevented, the fine management of the digital certificate is realized, and the whole circulation process can be recorded, so that the full-life-cycle supervision of the digital certificate is realized, and the
management efficiency of the digital certificate is greatly improved.