Land-use　change　and　the　associated　influences　on　the　carbon　metabolism　system　should　not　be　overlooked　in　the　context　of　rapid　urbanization.　By　combing　carbon　emissions/sequestrations　accounting　and　ecological　network　analysis,　this　paper　quantitatively　described　the　general　situation　and　spatial　distribution　evolution　of　carbon　metabolism　in　the　Beijing-Tianjin-Hebei　(BTH)　urban　agglomeration　from　2015　to　2019,　investigated　carbon　flows　induced　by　land-use　change,　and　revealed　the　ecological　relationships　between　the　components　of　the　system.　The　spatial　distribution　of　carbon　emissions　showed　a　trend　of　high　in　the　southeast　and　low　in　the　northwest,　while　carbon　sequestrations　were　the　opposite.　At　the　early　stage　of　regional　coordinate　development,　the　migration　of　enterprises　with　heavy　energy　consumption　and　emission　and　expansion　of　the　transportation　network　has　promoted　the　economic　development　in　the　surrounding　area　of　Beijing,　but　also　lead　to　the　carbon　emission　transfer　and　the　severe　imbalance　of　carbon　metabolism.　Despite　that　a　slight　improvement　can　be　found　in　the　carbon　metabolism　system　of　Beijing　and　Tianjin,　Hebei　province　still　faces　intensely　competitive　ecological　relationships　between　industrial　land　and　other　land　use,　and　has　a　relatively　low　mutualism　index.　It　is　suggested　that　integrated　land　use　planning,　strict　cultivated　land　protection　policies,　and　proper　ecological　compensation　mechanism　are　the　key　measures　to　facilitate　the　sustainable　development　of　the　BTH　urban　agglomeration.　©　2023　Elsevier　B.V.