For the design of the section and structure of the sloping breakwater,the calculation formulas and methods recommended by the current industry code mainly come from the actual project investigation and statistical data,the related model test data,and the foreign related research results,etc.,which are universal and instructive.However,there are no detailed provisions on the relevant contents such as sea-floor gradient and sudden change of water depth in front of the sloping breakwater,and the offshore wave elements are greatly affected by terrain and water depth,especially in the complex seabed terrain such as reef-plate,because of the complexity of wave motion,the conventional design method is not applicable.In this paper,the design cross sections of sloping levees in different seabed topography are verified by physical model tests,the differences between the design code and the model test results are compared and analyzed from the aspects of the structure of the protective face,the prisms of the protective feet,the overtopping volume and the stability of the breast wall,and relevant suggestions are given,which can provide references for similar projects.