Credit granting approval method and system for credit business, background server and storage medium

The invention discloses a credit granting approval method and system for a credit business, a background server and a storage medium. The method comprises the following steps that an approval requestinitiated by a business system is received, the approval request comprises to-be-approved object information and a query data type field, and the query data type field comprises an external data source interface number queue needing to be queried and processing rules corresponding to all external data; approval is carried out according to the approval request, and the approval process specificallycomprises the steps that according to to-be-approved object information and the external data source interface number queue, all external data source interfaces are called one by one to obtain corresponding external data, and data query or risk control processing is carried out according to corresponding processing rules; and after approval is completed, an approval result is returned to the business system. According to