As　for　the　multi　index　nonlinear　evaluation　problem　of　seismic　suitability　of　urban　land,　based　on　the　programming　model　of　position　weighted　vector　and　leapfrog　algorithm　for　the　characteristics　of　assessing　urban　land　suitability　for　earthquake　resistance,　using　ground　rupture　of　strong　earthquake,　landslides　and　collapse,　site　liquefaction,　site　seismic　subsidence,　earthquake　engineering　geological　zoning　and　site　type　as　the　evaluation　indexes,　puts　forward　evaluation　methods　of　suitability　of　seismic　resistance　and　disaster　prevention　of　urban　land　based　on　intelligent　solution.　Firstly,　the　absolute　dominance　and　relative　dominance　are　determined　and　they　are　taken　as　induced　component.　The　evaluation　indexes　are　rearranged　in　accordance　with　the　ideology　of　the　IOWA　operator.　Secondly,　the　position　weighted　vector　and　evaluation　values　are　solved　by　leapfrog　algorithm.　Finally,　the　evaluation　value　matrix　is　constituted,　and　the　optimal　evaluation　vector　is　solved　by　the　method　of　the　minimum　sum　of　the　vector　angle.　It　is　verified　that　the　method　is　feasible　and　effective　by　example　calculation　and　comparative　analysis.　The　evaluation　results　can　provide　a　theoretical　basis　for　urban　earthquake　disaster　prevention　plan.　©　2014　ejge.