To meet the increasingly stringent SO2emission standards for environmental protection in the oil and gas treatment industry in China, it is necessary to upgrade and improve the existing treatment technology of sulfur containing tail gas, and the more efficient treatment technology of sulfur containing tail gas need to be used in the new oil and gas treatment projects. The self-developed sulfur-containing tail gas treatment technology can meet the requirements of different SO2emissions. The existing equipments operate very well, and the SO2emission concentration is far below the current and upcoming environmental standards. The independent development and successful application of this series of technologies have eliminated the technology dependence on international engineering companies, and have positive significance for energy saving and emission reduction in oil and gas processing industry in China.