Drought and flood have been important issues around the world.Land use and land cover change influence hydrological factors such as interception, infiltration and evapotranspiration, the progress of water generation and concentration, then affect the discharge at the watershed outlet, and then influence the frequency and degree of flood.Taking this kind of study is of important significance for sustainable development of society and economy.The progress in the hydrological impact and flood response of watershed land use and land cover change is analyzed and summarized, and the study contents, methods and deficiencies are discussed.