Business system and unitization processing method and device based on business system

The invention relates to the field of big data, in particular to a business system and a unitization processing method and device based on the business system. The system comprises a front-end channel application which belongs to a channel unit and is used for analyzing a client request to obtain a client information number in the client request; according to a unit unified fragmentation rule, fragmenting the customer information number, and determining a target unit corresponding to the customer request; routing the client request to the target unit, and obtaining a processing result of the target unit on the client request; returning the processing result to the client; and the downstream partition application belongs to a product unit and is used for determining a target unit corresponding to the client request according to the unit unified fragmentation rule when the downstream partition application comprises a downstream sub-application. According to the scheme, through unit division and unit flow contro