Aiming at the phenomenon that canal revetment is often damaged，through studying the action and failure mechanism of ship waves on canal slope，the wave absorbing capacity of different types of ecological slope protection is analyzed，and the key technologies of slope protection with multi-function coordination in the canal channel are developed. The design principles and ideas of the ecological slope protection of the navigation channel are summarized，and it is proposed that the ecological slope protection structure should be provided with porous structures as much as possible to provide growth space for organisms. The selection of slope protection structure should consider the requirements of water bank interaction and ecology comprehensively. In the waterway with a high traffic density of ships，the navigation of ships will have a significant impact on aquatic organisms. If conditions permit，a separate area should be opened up for aquatic organisms to inhabit.