In the construction and operation of cascaded reservoir groups, higher requirements have been put forward for multi-objective optimization scheduling of cascaded reservoir groups, aiming to promote benefits and eliminate hazards through joint scheduling, leverage comprehensive benefits, ensure basin safety, and meet the needs of digital transformation of hydropower and water conservancy. Based on the research of integrated methods for hydrological forecasting, multi-objective scheduling, and decision-making of basin cascade reservoirs, this study constructs a multi-objective intelligent control system that serves hydrological forecasting, cascade scheduling, flood control, and risk assessment of cascade reservoirs, and applies it to the development of cascade hydropower in the southern European river basin of Laos.