Sulfur oxides (SOx) and nitrogen oxides (NOx) have been pointed out as pollution sources that cause air pollution. Especially included in industrial exhaust gases emitted from the combustion of fossil fuels containing sulfur components, sulfur oxides are fatal to humans, cause acid rain and make plants dry out, showing various environmental pollution. These desulfurization methods for removing sulfur oxides from such industrial exhaust gases have been continuously studied, and plants or fossil fuel-based power plants generally use flue-gas desulfurization (FGD), and container ships use EGCS(Exhaust Gas Cleaning System) which is a post-combustion treatment method In order to use the FGD method or EGCS, however, there are problems such as the need for the construction of separate desulfurization facilities, the need for a lot of cost and manpower for the operation of desulfurization facilities and complicated desulfurization process. Therefore, in order to reduce the emission of sulfur oxides related to the combustion of fossil fuels, it is required to develop a technology for a desulfurization composition and a desulfurization method which are simple and easy to apply and have excellent desulfurization effect, resulting in the development of this combustion pretreatment desulfurization catalyst.