In　China,　volatile　organic　compound　(VOC)　control　directives　have　been　continuously　released　and　implemented　for　important　sources　and　regions　to　tackle　air　pollution.　The　corresponding　control　requirements　were　based　on　VOC　emission　amounts　(EA),　but　never　considered　the　significant　differentiation　of　VOC　species　in　terms　of　atmospheric　chemical　reactivity.　This　will　adversely　influence　the　effect　of　VOC　reduction　on　air　quality　improvement.　Therefore,　this　study　attempted　to　develop　a　comprehensive　classification　method　for　typical　VOC　sources　in　the　Beijing-Tianjin-Hebei　region　(BTH),　by　combining　the　VOC　emission　amounts　with　the　chemical　reactivities　of　VOC　species.　Firstly,　we　obtained　the　VOC　chemical　profiles　by　measuring　5　key　sources　in　the　BTH　region　and　referencing　another　10　key　sources,　and　estimated　the　ozone　formation　potential　(OFP)　per　ton　VOC　emission　for　these　sources　by　using　the　maximum　incremental　reactivity　(MIR)　index　as　the　characteristic　of　source　reactivity　(SR).　Then,　we　applied　the　data　normalization　method　to　respectively　convert　EA　and　SR　to　normalized　EA　(NEA)　and　normalized　SR　(NSR)　for　various　sources　in　the　BTH　region.　Finally,　the　control　index　(CI)　was　calculated,　and　these　sources　were　further　classified　into　four　grades　based　on　the　normalized　CI　(NCI).　The　study　results　showed　that　in　the　BTH　region,　furniture　coating,　automobile　coating,　and　road　vehicles　are　characterized　by　high　NCI　and　need　to　be　given　more　attention;　however,　the　petro-chemical　industry,　which　was　designated　as　an　important　control　source　by　air　quality　managers,　has　a　lower　NCI.　(C)　2017　The　Research　Center　for　Eco-Environmental　Sciences,　Chinese　Academy　of　Sciences.　Published　by　Elsevier　B.　V.