Addressing the dual challenges of inadequate simulation for torrential rainfall forecasting and incomplete risk-benefit assessment system, it is of great significance to carry out intelligent forecasting, risk-benefit evaluation and regulation based on radar and intelligent technology. This paper proposes a systematic decision-making idea of “intelligent forecasting-analytical assessment-harmony regulation”, and constructs a research framework for storm risk-benefit assessment and regulation of in river basins or regions. The framework consists of three main components:① Intelligent forecasting:The main methods and intelligent models of rainfall, runoff and flood forecasting simulation are summarized, and the integrated intelligent forecasting system of rainfall-off-flood based on radar and intelligent technology is proposed. ② Analytical assessment:The risk-benefit two-layer evaluation idea is proposed, and the evaluation methods of risk and benefit are systematically sorted out,coupled economic, social, ecological and other multi-dimensional perspectives, forming a risk-benefit assessment system combining intelligent models and harmony theory methods. ③ Harmony regulation:This component proposes a joint risk-benefit regulation strategy based on harmonious regulation theory, by developing a harmonious regulation model aimed at optimizing the balance between the risks and benefits of torrential rainfall. Driven by the integrated intelligent prediction of rainfall-runoff-flood based on radar, this framework integrates intelligent technology and the method of harmony theory to systematically evaluate the potential risks and benefits associated with torrential rainfall events, conducting research on harmonious regulation based on the risk-benefit of torrential rain can provide systematic solutions and research paradigms for the management of torrent rain disasters in basins or regions.