According　to　the　complexity,　uncertainty　and　dynamics　of　evaluation　of　hazardous　resistant　suitability　for　land,　a　coupling　model　based　on　set　pair　analysis　and　Vague　theory　was　established　in　this　paper.　Surface　rupture,　liquefaction　of　sandy　soil,　settlement　of　soft　soil,　collapse　and　landslide,　engineering　geology　classification　and　site　classification　were　taken　as　affected　factors　of　suitability　evaluation.　In　order　to　avoid　neutralizing　the　negative　impact　caused　by　poor　indicators,　variable　weight　theory　was　incorporated　into　the　coupling　model.　Ten　sets　of　data　were　selected　as　calculating　example.　The　performance　of　coupling　model　was　compared　with　expert　analysis　method　and　constant　weight　Analytic　Hierarchy　Process　(AHP)　model.　The　results　showed　that　the　coupling　model　had　good　stability　and　discriminant　results　were　more　accurate.