Abstract: With the increase in the strictness of the international ocean law as well as in the amount of voy-age of our own navy ships, it is of high necessity for navy to effectively deal with the solid waste, rendering ships with the capability to sail worldwide. In this paper, the MARPOL 73/78 on solid waste is firstly intro-duced, and the relevant strategy for US navy is then presented. Based on the comprehensive analysis, it is concluded that the plasma technology serves as the optimal approach to treat the solid waste on board due to its qualified slag and effluent. Finally, the utilization of shipboard plasma apparatus is introduced.