The　efficient　removal　of　hydrogen　sulfide　(H2S)　from　exhaust　emissions　is　a　great　challenge　to　chemical　industries.　Selective　catalytic　oxidation　of　H2S　into　elemental　sulfur　is　regarded　as　one　of　the　most　promising　approaches　to　alleviate　environmental　pollution,　while　recycling　sulfur　resources.　It　is　therefore　highly　desirable　to　develop　efficient　catalysts　for　the　conversion　of　H2S　to　sulfur　under　mild　reaction　conditions.　Here　we　present　a　nitrogen-rich　carbon　obtained　by　the　direct　thermal　treatment　of　commercial　polyaniline　(PANI)　for　the　selective　oxidation　of　H2S　in　a　continuous　way　at　relatively　low　temperature　(180　°C).　The　efficient　conversion　of　H2S　over　the　N-rich　carbon　catalysts　was　attributed　to　the　in　situ　generation　of　pyridine-N　on　the　carbon　matrix,　which　served　as　the　active　sites　to　promote　the　absorption　and　dissociation　of　H2S　molecules,　achieving　a　superior　catalytic　conversion　rate　of　99%　and　selectivity　up　to　95%　at　180　°C.