In　this　study,　the　ultraviolet　(UV)　enhanced　gamma-Fe2O3@Carbon　composite　(gamma-Fe2O3@C)　persulfate　(PS)　activation　system　was　successfully　constructed　for　quinoline　degradation.　Quinoline　can　be　effectively　degraded　with　the　removal　efficiency　of　99　%　and　TOC　removal　efficiency　of　86　%　in　60　min　at　pH　7.5　due　to　the　increased　contribution　of　SO4.-　and　(OH)-O-.　caused　by　the　assistance　of　UV　irradiation　in　the　gamma-Fe2O3@C/PS　system.　Control　experiments　showed　that　the　quinoline　removal　efficiency　might　be　primarily　restricted　by　the　limited　PS　dosage　and　the　system　had　a　wide　pH　application　range　of　3　similar　to　11,　good　tolerance　and　strong　anti-interference　ability.　In　the　presence　of　the　reactive　oxygen　species　(SO4.-,　(OH)-O-.　and　O-1(2)),　quinoline　was　first　decomposed　into　formic　acid,　aniline,　ethylbenzene　and　other　intermediate　products　through　hydroxylation,　oxidative　dehydrogenation　and　ring-opening　reactions　and　then　most　of　them　were　mineralized　into　carbon　dioxide　and　water　eventually.