PBFT algorithm optimization method, device and equipment, and storage medium

The invention relates to a PBFT algorithm optimization method and device, equipment and a storage medium. The method comprises the steps that a block chain application program sends a pre-constructed transaction request to a consensus node; the consensus node sends a verification message to the blockchain application program to indicate the blockchain application program to verify the validity of the transaction; the main node selects effective transactions and packs the effective transactions into blocks, and broadcasts the blocks to the consensus nodes; the consensus node performs a first round of voting by broadcasting a first message, and performs a second round of voting by broadcasting a second message according to the first message; the method also includes judging whether the ratio of the number of nodes receiving non-null second messages to the number of all nodes is larger than a first set proportion threshold value or not, and if yes, increasing the height of a block by 1 through proposal of the bl