In the estuary area with heavy wind waves，polyurethane bonded aggregate（PBA）revetment is applied to the dams. By theoretical research，on-site monitoring，and physical model test，this paper studies structural stability，wave force distribution，and wave damping of PBA revetment. The results show：1）Under significant wave height of 2.0-3.0 m，PBA revetment with thickness of 20-30 cm remains stable when the slope ratio is 1:2. 2）PBA revetment can effectively reduce wave run-up with a designed roughness coefficient of 0.80-0.85. 3）The maximum wave pressure is not less than 0.5ρgH（the product of seawater density，gravitational acceleration，and wave height）.