Block chain consensus method based on node mutual reputation

The invention relates to a block chain consensus method based on node mutual evaluation reputation. The method comprises the following steps: creating a kth-round consensus group according to a reputation value of a (k-1) th round of each node, and determining a main node of the kth-round consensus group; starting from the kth round of consensus, carrying out transaction among the nodes to obtain an evaluation value set of the nodes in the kth round; the main node of the kth-round consensus group packs and adds transaction items among the nodes into the block of the kth round, and calculates the reputation value of each node in the kth round according to the evaluation value set of each node in the kth round and the reputation value of each node in the (k-1) th round; the main node of the kth-round consensus group uses a secret key of the main node to sign the block of the kth round to generate a Hash value of the block of the kth round, and a submission message of the kth round is formed and sent to other no