Aiming at the problem that the structural stability calculation for ecological landscape embankment with a wide platform breaks through the applicable scope of the codes，the physical model test is carried out. Firstly，we determine the main functions of embankment design according to the use requirements；secondly，we preliminarily determine the design section of embankment through the theoretical calculation of the stability and wave pressure of wave wall and armor block；finally，we verify the design section based on the wave model，compare and analyze the theoretical calculation and test data. The results show that：the distance between the seawall and the toe of the embankment with a wide platform should be greater than 1.5 times of the wavelength. Under this condition，the wave overtopping is small，and the greening can be planted back to the sea，so the effect of wave force can be ignored in the stability verification for the seawall. At the position 1 times the wavelength from the embankment toe，the stable and reliable type of armor block should be selected，and the wave dissipation effect is obvious. The research results provide experimental verification and reasonable suggestions for the design of ecological embankment with a wide platform.