Communication optimization system of block chain network

The invention discloses a communication optimization system of a block chain network. The system comprises two or more relay nodes and a global node. Wherein the relay node is used for establishing connection with the block chain node in response to a connection request of the block chain node; receiving a registration request of the block chain node, wherein the registration request comprises an ID of the block chain node and an ID of a relay node connected with the block chain node; generating a registration event based on the registration request and sending the registration event to a global node, wherein the registration event comprises an ID of a block chain node and an ID of a relay node connected with the block chain node; updating a local routing table according to the obtained registration event, wherein the local routing table comprises a corresponding relationship between the ID of the block chain node and the ID of the relay node connected with the block chain node; and forwarding the message fro