The riprap revetment is widely used in the middle and lower reaches of the Yangtze River,which can enhance the flood resistance of the embankment,and can ensure the safety of flood control and control the favorable river potential.However,rubbles crept down frequently,which can lead to the damage of revetment.For the problem of water damage in riprap revetment,the actual destruction modes of riprap revetments and flume experiments about riprap damage were researched.It is believed that the water damage of smooth riprap revetment is mainly manifested as the loss,slide and slope deformation of the revetment rocks,which leads the surface soil of slope to be exposed.In this paper,three types of water damage modes are proposed and the corresponding damage mechanism is analyzed.