Abstract: The climate change is one of the important environmental issues,and water conservancy projects are main measures to cope with the climate change.The climate change will have effect on the design standards,operation schemes,and safety of water projects through accelerating the hydrological cycle.Under the global warming,due to the sea level rise,the increase in frequency and intensity of extreme storms and droughts,the design standards need to be improved to some extent.The long-term drought will significantly affect the safety operation of water projects,meanwhile,the extremely durative heat wave or cold wave will possibly reduce the factor of safety of dams as well.