The climate change impact on flood protection is a global issue.With climate warming and the rapid development of urbanization,flood protection of China will face with the great challenge from the heavy rainfall and extreme events such as flood disaster.How the occurrence trends and variation of extreme floods under climate change,has become the forefront questions of research.Aiming at the serious flood disaster in China,the influence of climate change on flood disaster was described from the global to China,and the latest and cutting-edge researches were reviewed.Some countermeasures and suggestions for reducing the loss of flood disaster under climate change were proposed as the reference for the future study of climate change impact on flood protection.For example,the basic research of climate impacts on extreme hydrological events including non-stationarity resulting from climate and hydrological indices,the nonlinear problems and temporal variability of water cycle factors and uncertainty of hydrological and climate modelling should be strengthen.Adaptive measures research of flood protection including adaptive capability and manner under climate change should be also paid more attention.