The series of sulfur recovery catalysts supplied by our company are used in the claus reaction sulfur recovery process of SRU in petroleum refining, petrochemical industry and coal chemical industry and other fields. They are suitable for the sulfur recovery process with different hydrogen sulfide concentration and different processes. They can be used in the whole bed of any first-level claus reactor or layered loading with other catalysts with different functions or types. It is also applicable to the sulfur recovery process of CBA process. Al2O3-based sulfur recovery catalyst with large specific surface and high claus activity; The bimodal pore structure is more favorable to process gas diffusion and claus reaction. Uniform particle, high strength; Stable structure, good activity stability, long service life.