A method for processing a transaction request, implementable by a first transaction node, may comprise: acquiring transaction data of a target transaction, wherein the first transaction node participates in the target transaction; determining, according to the transaction data, a transaction abstract after a plurality of transaction nodes each sign a data abstract of the transaction data, wherein the transaction nodes comprise at least the first transaction node and one or more second transaction nodes; generating a transaction request that comprises the transaction abstract; and broadcasting the transaction request to one or more consensus nodes, causing the consensus nodes to each save the transaction abstract in the transaction request into a blockchain after the transaction abstract passes consensus verification, the consensus nodes being blockchain nodes, wherein the transaction nodes and the consensus nodes are blockchain nodes of a blockchain network.