Desulfurization catalyst as well as preparation method and application thereof

The invention discloses a desulfurization catalyst and a preparation method and application thereof, the catalyst comprises a catalyst carrier and a catalyst active component, the catalyst active component is loaded on the catalyst carrier, the catalyst carrier comprises a hydrotalcite-like material, the catalyst active component comprises one or more metal elements, and the metal elements are one or more metal elements. And in terms of metal oxide, the content of the catalyst active component is 8.5-36wt%, and the balance is the catalyst carrier. The catalyst can treat high-concentration sulfur-containing wastewater (the highest linear expected treatment effect can still be achieved when simulated sulfur-containing wastewater with the S < 2-> concentration being 24000mg/L is treated (4 hours are needed for every 6000 mg/L of S < 2->), and the reaction time is greatly prolonged when the S < 2-> concentration is 30000mg/L), and the key point is that the catalyst is used for treating the high-concentration sulf