Abstract. Marine environmental protection has become the responsibility for worldwide common people ,therefore , the public become the main force of marine environmental protection inescapably. In recent years, some countries neighboring the South China Sea have accelerated the development and utilization of the oceans , resulting in a deterioration of the marine environment. Meanwhile,there are some problems in China's marine environment protection,such as narrow range in public, the right to public participation is not clear, there is no security or guarantee for participants, and other issues involved in the program. In this paper, the author try to give his own opinions from the aspects of public participation system and improving planning of marine environmental protection on marine environmental protection.