To　resolve　the　problems　of　the　objectivity　of　emergency　case　retrieval　and　the　difficulty　of　determining　the　weights　of　attributes,　an　emergency　case　retrieval　method　is　proposed　based　on　the　cross-efficiency　evaluation.　Firstly,　the　similarity　degrees　of　attributes　between　the　target　case　and　the　historical　cases　are　measured　for　each　attribute　by　using　Euclidean　distances.　Then,　the　similarity　degrees　of　cases　are　measured　by　using　the　CCR　cross-efficiency　model　in　data　envelopment　analysis.　Emergency　implementation　effects　of　historical　cases　are　also　assessed　by　using　CCR　cross-efficiencies.　The　overall　evaluation　values　of　historical　cases　are　the　integrations　of　their　similarity　degrees　of　cases　and　emergency　implementation　effects.　The　emergency　alternative　for　target　case　is　the　historical　one　with　the　maximum　overall　evaluation　value.　Finally,　a　fire　example　of　high-rise　building　is　used　to　verify　the　feasibility　and　effectiveness　of　the　proposed　method.　©　2018,　Editorial　Office　of　Control　and　Decision.　All　right　reserved.