The　preservation　of　historic　buildings　is　an　important　research　area　in　the　preservation　of　cultural　her-itage.　In　recent　years,　the　rapid　development　of　urban　rail　transit　in　the　historic　city　has　had　a　great　impact　on　the　safety　of　many　surrounding　historic　buildings.　How　to　determine　the　preservation　priority　of　historic　buildings　quickly　and　accurately　is　of　great　significance　to　the　rational　allocation　of　conservation　resources.　Based　upon　the　matter-element　theory,　this　paper　developed　the　prioritization　model　of　historic　building　reservation.　First,　this　study　established　an　evaluation　system　involving　ten　individual　indicators　among　two　categories　related　to　historic　building　and　subway　construction.　Second,　the　criteria　for　each　indicator　is　set　up　according　to　the　individual　priority　levels,　and　Analytic　Hierarchy　Process　(AHP)　method　has　been　applied　for　indicator　weight　setting.　Finally,　this　model　was　applied　to　a　case　study　to　evaluate　11　historic　buildings　along　Tianjin　Metro　Line　7.　The　similarities　and　differences　between　this　model　and　the　traditional　Single　Indicator　method　and　the　Additive　Ratio　Assessment　(ARAS)　method　are　discussed　to　test　and　verify　the　feasibility　of　the　proposed　model.　This　study　provides　decision　support　for　future　heritage　impact　assessment　along　the　subway.　(c)　2020　Elsevier　Masson　SAS.　All　rights　reserved.