Global energy transnational transaction method and system

The invention discloses a global energy transnational transaction method. The method comprises a transaction party method and a transaction server method. The transaction party method comprises the following steps: sending own demands to a transaction server; in response to successful demand pairing, generating a contract with a transaction server transaction node joining the block chain network in the country, and sending the contract to the block chain for consensus; and in response to the contract becoming effective, performing price transaction with the transaction node of the national transaction server. The transaction server method comprises the following steps: receiving respective requirements of two transaction parties; and pairing the demands, and feeding back a pairing result to the two transaction parties. The invention further discloses a corresponding system. According to the invention, the two transaction parties and the transaction nodes generate contracts, consensus is carried out on the con