On　the　basis　of　analyzing　various　factors　on　unban　fire　station　location,　the　evaluation　index　system　of　unban　fire　station　location　including　two　quantitative　indicators　of　the　time　factors　and　economic　factors　and　two　qualitative　indicators　of　the　social　factors　and　environmental　factors　is　established.　Meanwhile,　the　paper　puts　forward　a　new　method　of　projection　pursuit　technology　to　locate　the　best　fire　station.　By　means　of　immune　evolutionary　algorithm,　the　paper　describes　the　key　steps　of　projection　pursuit　cluster　model　with　an　example,　and　points　out　that　the　method　is　more　objective　when　applied　in　the　decision-making　system　which　contains　abundant　data　and　legible　properties.