The blue-green laser penetrates the sea surface in submarine communication and detection, and its propagation through atmospheric-sea characteristics is influenced by wind speed and other acting force. Based on the volume-surface composite model of rough sea surface with foam layer driven by wind,the rough surface scattering theory, Mie theory and vector radiative transfer (VRT) theory, the laser scattering characteristics of rough sea surface are analyzed. Using Kirchhoff approximation for the JONSWAP spectrum, the dependence of the backscattering coefficient of the sea surface on the incident angle,the wind speed, the wind area, as well as the temperature and salinity are discussed. The results suggest that foam layer has a considerable effect on the scattering characteristics especially at large incident angle, with the increasing wind speed, wind area and the dielectric constant.