The invention discloses an enterprise financing risk control method based on a block chain, and the method comprises the steps: obtaining a core enterprise and a financial institution of a supply chain to which a to-be-financed enterprise belongs when the to-be-financed enterprise initiates a financing request, wherein the to-be-financed enterprise is a non-first-level supplier of the core enterprise; sending the financing request to the core enterprise and the financial institution, and verifying the rationality of the financing request by the financial institution; and after the verificationis passed, sending the financing amount in the financing request to the to-be-financed enterprise and notifying the core enterprise. According to the risk control method, the rationality of the financing request is verified through the financial institution based on supply chain finance, financing is carried out after verification is passed, financing of the enterprise to be financed is achieved,dependence on manpower is not needed, and the execution efficiency is high.