In the commodity purchase stage, the downstream enterprises in the supply chain trade usually pay a part of the payment in advance to the upstream enterprises (raw material mining enterprises) in the supply chain in order to obtain the materials necessary for the enterprise operation. However, many small and medium-sized enterprises are often faced with the problem of capital shortage in the commodity purchase stage because their own capital strength is not 10% strong. The financing vision is very good Urgent. Therefore, the confirmed warehouse financing mode is mainly applicable to the prepayment financing mode in the commodity purchase stage, but this financing mode is also a short-term trade financing mode in essence. The so-called confirmed warehouse financing refers to that in the supply chain trade, according to the credit guarantee of the core enterprises in the supply chain, on the premise that the core enterprises promise to buy back, the core enterprises store the goods in the warehouse designated by the bank, and then the bank guarantees the warehouse receipt pledge and the delivery right of the small and medium-sized enterprises in the control chain to the core enterprises, so as to provide trade financing for the small and medium-sized enterprises in the whole chain A financial service business model of capital.