Block chain-based reverse factoring financing quota sharing method and system

The invention provides a reverse factoring financing limit sharing method and system based on a block chain. The method comprises the steps that S1, a core enterprise node and a supplier node publish enterprise information verified by a platform node to a block chain network; s2, a fund party serving as a factoring provider gives a credit line to the core enterprise and uploads the credit line to a block chain node; s3, the supplier node carries out financing with the factoring provider by virtue of the receivable bill issued by the core enterprise, occupies the credit line of the core enterprise after the factoring provider passes the use approval, and uploads the credit line to the block chain node; and S4, when the financing of the supplier node expires and the repayment stage is completed, the occupation of the supplier node on the credit line of the core enterprise is relieved, and the recovered line is uploaded to the block chain node. According to the invention, credit line information sharing is reali