Driven　by　＂carbon　peak　and　carbon　neutrality＂,　automobile　manufacturing　industry　is　an　important　part　of　energy　saving　and　carbon　reduction.　As　a　resource　and　energy　intensive　industry,　it　uses　automobile　steel　plate　as　the　main　material,　which　has　the　typical　characteristics　of　high　production　energy　consumption　and　emissions.　The　life　cycle　assessment　(LCA)　method　was　used　to　conduct　environmental　impact　assessment　and　contribution　analysis　for　each　stage　of　the　long　process　(BF-BOF)　and　short　process　(EAF)　of　automobile　steel　plate　production.　The　results　show　that　in　BF-BOF,　the　iron　making　process　and　sintering　process　have　greater　contribution　to　the　total　environmental　impact.　In　automotive　steel　plate　production　short　process　(EAF),　iron　making　process　and　electric　furnace　steelmaking　process　contribute　greatly　to　the　total　environmental　impact.　The　environmental　impacts　of　EAF　process　in　automobile　steel　plate　production　are　lower　than　those　of　BF-BOF　process.　Clobal　warming　(CWP),　fossil　energy　depletion　(FFP),　mineral　resource　depletion　(SOP),　freshwater　eutrophication　(FEP),　marine　eutrophication　(MEP),　freshwater　ecotoxicity　(FETP),　human　carcinogenic　toxicity　(HTPc),　and　human　non-carcinogenic　toxicity　(HTPnc)　are　the　major　environmental　impacts.　The　copper　equivalent　of　BF-BOF　process　and　EAF　process　are　85.　6　kg/t　and　25.　6　kg/t,　respectively,　and　the　comprehensive　energy　consumption　is　541　kg/t　and　265　kg/t,　respectively.　The　carbon　dioxide　equivalent　was　2　111.　7　kg/t　and　1　054.　9　kg/t.　The　resource　consumption,　energy　consumption　and　greenhouse　gas　emission　of　EAF　process　are　better　than　those　of　BF-BOF　process,　which　are　70.　1%,　51.0%　and　50.　1%　lower,　respectively.　The　three　types　of　environmental　damage　of　EAF　process　are　lower　than　that　of　BF-BOF　process,　which　has　certain　environmental　advantages.　Therefore,　if　conditions　permit,　increasing　the　production　proportion　of　EAF　process　will　contribute　to　the　low-carbon　and　sustainable　development　of　automobile　manufacturing　and　steel　industry.　©　2023　Chinese　Society　for　Metals.　All　rights　reserved.