The lecture introduced the purpose of this research,including to understand the generic concept and develop a conceptual template of sustainable flood risk management (SFRM) practice, to understand if practice have any constraints and barriers to achieve SFRM through the Pearl River Delta (PRD) case in Hong Kong (first) and the Yangtze River Delta (YRD) case in Ningbo afterwards,To contribute to the developing of sustainable flood risk assessment in these cases under dynamic conditions of changing: Climate,Demographic and development pressure.