Climate change poses great threats from disastrous floods and droughts to the world, of which Japan, Vietnam and the Philippines are among the most affected countries. Human interventions such as deforestation, dam constructions, and expansion of irrigation system have magnified the impacts of climate change. Sediment supply downstream will be beneficial to improve river geomorphology by creating suitable habitat, reduce coastal erosion and increasing the safety of hydraulic infrastructures. The proposed project aims at assessing the impacts of climate change and human interventions on reservoir sedimentation, flood inundation, agricultural practices, and river and coastal erosion in the Vu Gia-Thu Bon and Cagayan river basins. Then, we establish integrated flood and sediment management schemes for sustainable development. The ultimate goal of the proposed project is to transfer the project’s results to the stakeholders and policy decision makers to implement into the national laws. We also organize some training courses, seminars and workshops to train young researchers, stakeholders, policymakers, local communities and to expand our collaborative network with other ASIAN countries and global change programmes.