Transaction processing method and device based on block chain, equipment and storage medium

The invention provides a transaction processing method and device based on a block chain, equipment and a storage medium, and can be applied to the technical field of block chains. The method comprises the following steps: in response to a transaction request initiated by a buyer, obtaining order information and payment information matched with the transaction request; the order information and the payment information are broadcasted to nodes of the whole network, and payment corresponding to the payment information is stored in an intermediate account; in response to a transaction settlement request initiated by a seller, broadcasting order confirmation information and order information contained in the transaction settlement request to nodes of the whole network; receiving first confirmation information fed back by each supervision node in the nodes of the whole network; and when the number of the received first confirmation information is determined to meet the first number requirement, transferring the pa