Improved DPoS block chain consensus algorithm

The invention discloses a block chain consensus algorithm based on improvement DPoS. The method comprises the following steps: consensus node selection: each node performs a vote selection behavior according to an updated vote value of a previous system period, a block chain system obtains rights and interests and votes obtained by each node according to a voting result, then calculates a total score of each node according to the rights and interests and votes obtained by each node, and sends the total score to the block chain system; dividing all nodes according to the total score; block generation and verification: the selected proxy node solves a PoW problem to fight for an accounting right; updating of a sound value: increasing the sound value of the node when the node is in a positive behavior; and when the node is in a disable behavior, reducing the claim value of the node to promote the malicious node in the proxy node to be replaced in the next system period. According to the method, a set of reward v