The　Beijing-Tianjin-Hebei　Region　is　concentrated　with　steel　industry　and　is　the　most　prominent　area　of　air　pollution　in　China.　Analysis　of　the　medium　and　long-term　emission　reduction　by　using　various　pollution　control　tools　in　the　steel　industry　is　of　great　significance　for　selecting　the　optimal　emission　reduction　policy　to　accelerate　the　air　pollution　control　in　the　region.　This　paper　simulated　and　calculated　the　emission　of　the　major　pollutants　SO2,　NOx,　PM10,　PM2.5,　CO2,　and　their　corresponding　emission　reduction　effects　under　eight　scenarios　of　both　single　and　collaborative　emission　reductions　in　the　Beijing-Tianjin-Hebei　Region　from　2015　to　2030.　This　is　based　on　the　constructed　LEAP-Beijing-Tianjin-Hebei　iron　and　steel　industry　model,　using　2015　as　the　base　year　and　5　years　as　a　period,　combined　with　four　emission　reduction　measures,　which　are　scale　emission　reduction,　structural　emission　reduction,　technology　emission　reduction　and　end　treatment.　The　results　showed　that　under　a　single　emission　reduction　scenario,　the　scale　emission　reduction　scenario　had　significant　effects　on　the　reduction　of　the　five　pollutants　compared　with　other　scenarios.　Under　the　scenario　of　collaborative　emissions　reduction,　the　integrated　emission　reduction　scenarios　with　the　four　superimposed　measures　worked　best.　Under　this　scenario,　SO2,　NOx,　PM10,　PM2.5　and　CO2　pollutant　emissions　of　the　iron　and　steel　industry　in　the　Beijing-Tianjin-Hebei　Region　would　be　reduced　by　27.73×104,　17.85×104,　42.94×104,　27.35×104　and　23.15×107　t　in　2030.　Compared　with　the　comprehensive　scenario,　the　reduction　effect　of　end　treatment　was　only　second　to　the　integrated　scenario,　except　for　the　reduction　of　CO2　emission.　The　reduction-structure　scenario　had　relatively　significant　reduction　effect　on　PM10　and　PM2.5,　as　the　reduction-technology　scenario　did　on　CO2,　SO2　and　NOx.　Therefore,　it　is　necessary　for　the　iron　and　steel　industry　in　the　Beijing-Tianjin-Hebei　Region　to　make　more　effort　in　eliminating　the　backward　and　excess　production　capacity,　as　well　as　reducing　the　output　at　the　source　origin.　On　this　basis,　it　is　also　needed　to　continuously　strengthen　end　treatment,　increase　scrap　ratios,　and　increase　the　level　of　energy-saving　and　emission-reduction　technologies,　in　order　to　improve　the　potential　for　pollution　control　and　emission　reduction.　©　2019,　Editorial　Board,　Research　of　Environmental　Sciences.　All　right　reserved.