The participation of demand-side resources in grid operation and regulation, in coordination with the generation side, can jointly ensure a stable supply of electricity. The application of control technology in the energy field makes demand-side resource control methods more flexible and intelligent, thus providing a technical guarantee for demand-side resources to participate in the power market. This paper discusses the interaction between demand-side resources and the generation side and establishes an intraday rolling optimal dispatch model for demand-side resources. Finally, it is demonstrated through simulation that refining the multi-dimensional response characteristics of demand-side resources in the intraday dispatch model can improve the operational economy of the system and the flexibility of the scheduling model to cope with uncertainties.