Abstract: Flood forecasting has an important theoretical and practical significance in flood control and disaster mitigation. Research and application progress on Basin hydro-meteorology coupling flood forecasting both at home and abroad is reviewed from the radar and numerical model of quantitative precipitation estimation and forecast technology, hydrological model for basin flood forecasting, hydrology-meteorological coupling technology, and real-time flood forecasting system. Finally, some key technologies and problems of flood disaster prediction from the integration and coupling for flood forecast and weather forecast, physically based distributed hydrological model and flood disaster evaluation are proposed.