The　coal　cap　policy　is　one　of　the　most　important　measures　to　address　the　severe　air　pollution　in　China.　To　quantify　the　impact　of　the　coal　cap　policy　on　emissions　reduction,　we　designed　four　scenarios　to　predict　the　effect　of　energy　saving　and　pollutant　emissions　reduction　from　coal-fired　stationary　sources　in　the　BTH　(BeijingTianjin-Hebei)　region　from　2014　to　2030.　The　results　demonstrated　that　the　coal　cap　strategy　would　significantly　affect　energy　consumption　structure　and　result　in　15%　of　energy　savings　in　2020　and　25%　in　2030.　Moreover,　the　reduction　potential　of　main　pollutants　from　stationary　coal　combustion　sources　would　achieve　36-45%　in　2020　and　60-79%　in　2030　relative　to　BAU　(Business　As　Usual),　For　the　whole　BTH　region　the　BPE　(Backward　Productivity　Elimination)　scenario　could　get　a　better　effect　for　SO2　and　NOx　than　CES　(Clean　Energy　Strategy)　scenario,　while　the　effect　is　opposite　for　CO　and　PM2.5,　and　similar　for　VOCs　and　PM10.　For　Beijing,　there　would　be　very　significant　reduction　for　all　pollutants　under　the　CES　scenario.　For　Tianjin　and　Hebei,　there　is　little　difference　in　the　pollutants　reduction　between　the　BPE　and　CES　scenarios.　Power　plants　and　industrial　boilers　are　major　contributors　under　the　BPE　scenario,　and　emissions　from　the　heating　boilers　and　residential　sources　are　greatly　reduced　under　the　CES　scenario.　The　findings　in　this　study　are　of　considerable　value　for　the　policymakers　to　implementing　the　coal　cap　policy　in　BTH　region　and　other　Chinese　cities.