With the further strengthening of the relevant norms of Marine environmental protection in China, the concept of green environmental protection, energy saving and emission reduction has been running through the whole process of the preliminary research in oilfield development.In order to improve the living and operating environment of offshore platforms, the wet water desulfurization and dust removal technology is researched and applied. Meanwhile the design scheme of the post-processing system has been optimized, including the vertical arrangement of fume pipes, the optimization of the fuel oil treatment system, the comprehensive treatment technology of the control of fuel moisture content , and the control of the operating load rate of the crude oil generator set, which is conducive to reducing the emission concentration of sulfide and solid particulate matter of the crude oil generator set. Thereby reducing the environmental impact, and at the same time the formation of offshore platform crude oil generator unit smoke comprehensive treatment technology reserve, to promote the realization of green development and sustainable development of oil fields.