The polarization at 443 and 865 channels over the coastal zone using ADEOS/POLDER data is analyzed.The data used here are 2 scenes including India and 1 scene over the Indian Ocean taken on November 18, 1996, 1 scene over the Pacific Ocean taken on November 1, 1996, and 2 scenes including the Sea of Japan taken on April 12 and 13, 1997. From the polarization analysis of ADEOS/POLDER images used in the present study, the following results are obtained : (1) At 443 nm, the polarization is due to the scattering of light by atmospheric particles. (2) Optical properties of atmospheric aerosols over the Indian Ocean are similar as those over the Pacific Ocean at November, 1996 because the polarization (%) versus scattering angle on the principal plane in the Indian Ocean is almost the same as that in the Pacific Ocean. (3) Over the sea surface, minimum points of polarization degrees are in visible in the backscattering region on both sides of the principal plane. On the other hand, it seems that over the land surface minimum points of polarization degrees appear in the vicinity of the principal plane at the 443 channel.