This paper presents the theoretical evaluation for the laser scattering from the waved seawater surface with the random facet model and the depolarization property of the seawater surface. The numerical results show that the scattering light is partly depolarized in all direction except the backward. If the local incident angle equals to the Browser angle, t he scattering light will be linearly polarized for any incident laser. A simulating experiment was done to verify the theoretical analysis, and the result agrees well with the calculating one.