The invention discloses an interactive television business and broadband bandwidth division method and system. The method comprises the steps that a configuration file used for distinguishing an interactive television business and a broadband business is configured, wherein the configuration file includes the classification rules of flow packet classifiers for multiple service flows, and the service flows include an interactive television downlink service flow, an interactive television uplink service flow, a broadband downlink service flow and a broadband uplink service flow; and the business data of user equipment are acquired, and the service flows required by the business data are divided by using the flow packet classifiers according to the classification rules so that the corresponding business of the business data can be recognized. With application of the technical scheme, the interactive television business and the broadband business are enabled to be corresponding to the respective service flows without mutual conflict so that the user experience can be enhanced.