as　for　the　multi　source　fuzzy　characteristics　of　evaluation　factors　in　the　process　of　earthquake　collapse　hazard　evaluation,　the　variable　fuzzy　set　theory　is　applied　to　the　earthquake　collapse　hazard　evaluation.　Firstly,　impact　factors　like　the　topography,　seismic　geology,　stratigraphy,　meteorological　and　hydrological　are　comprehensively　considered　as　the　evaluation　index　system　of　seismic　collapse　hazard,　and　the　corresponding　grade　standard　is　established　as　well.　Secondly,　collapse　points　on　both　sides　of　the　Yingxiu　to　Gengda　highway　affected　by　the　earthquake　in　Wenchuan　selected　as　the　samples　the　maximizing　deviation　method　is　introduced　to　calculate　weight　process　and　the　index　of　actual　data　discrete　t　is　used　to　obtain　weights;　Finally,　using　the　theory　of　variable　fuzzy　sets,　the　linear　and　non-linear　combination　of　seismic　collapse　hazard　evaluation　are　made　by　changing　the　parameters　of　fuzzy　evaluation　model　with　the　mean　value　as　the　final　evaluation　results　,　which　verifies　better　applicability　of　variable　fuzzy　sets　method　in　the　earthquake　collapse　hazard　assessment　by　comparing　the　results　with　other　methods.　©　2014　ejge.