Fuente: Wipo "BigData" The invention relates to the technical field of blockchain and big data processing, and relates to a blockchain node permission control method based on big data and a blockchain system. The method comprises the following steps: firstly, generating management equipment updating notification information when equipment management authority updating processing needs to be carried out; then, generatingmanagement equipment identification notification information based on the management equipment updating indication information generated by each piece of second block chain node equipment, wherein the management equipment identification notification information is used for indicating that one piece of second block chain node equipment is used as new first block chain node equipment; and finally,broadcasting the management equipment identification notification information to each piece of second blockchain node equipment. On the basis of the method, the problem that in the prior art, the authority of blockchain nodes is unreasonable during management and control can be solved.