In　order　to　effectively　curb　the　various　hazards　posed　by　carbamazepine　(CBZ)　to　aquatic　ecosystems,　a　recyclable　magnetic　AgBr/BiOBr/Fe3O4　composite　photocatalytic　material　was　successfully　synthesized　in　this　study.　When　the　content　of　Fe3O4　was　5　wt%　(ABF-5),　the　ABF-5/Vis/PMS　system　was　formed　under　peroxymonosulfate　(PMS)　and　visible　light　(Vis).　The　system　was　able　to　degrade　96.84　%　of　CBZ　within　30　min,　with　good　photocatalytic　synergy　and　degradation　effect.　Meanwhile,　the　system　also　showed　a　satisfactory　degradation　effect　on　CBZ　in　real　water　bodies　such　as　reservoir　water　and　hospital　wastewater.　In　the　ABF-5/Vis/PMS　system,　CBZ　was　degraded　mainly　by　cleavage,　hydroxylation,　oxidation,　and　decarboxylation,　and　the　active　substances　such　as　O-1(2),　O-center　dot(2)-,　h(+)　played　a　major　role　in　the　degradation　process.　After　five　cycles　of　experiments,　the　degradation　efficiency　of　CBZ　remained　above　85　%.　Moreover,　ABF-5　can　be　quickly　separated　and　easily　reused　under　an　external　magnetic　field　with　good　stability.　In　summary,　the　recoverable　magnetic　ABF-5　has　good　potential　for　practical　application　and　could　provide　novel　perspectives　methods,　and　ideas　for　the　treatment　of　persistent　organic　pollutants　treatment　in　water　ecosystems.