Based　on　the　concept　of　service　enterprise　competitiveness,　this　paper　analyzes　the　key　elements　of　enterprise　competitiveness　and　establishes　the　evaluation　index　system　of　it,　which　includes　three　first-level　indexes,　i.e.　enterprise　resources,　enterprise　capabilities　and　enterprise　performance,　10　second-level　indexes　and　28　third-level　indexes.　It　selects　fuzzy　comprehensive　evaluation,　principal　component　analysis,　grey　relational　analysis　to　evaluate　the　service　enterprise　competitiveness.　Based　on　the　results　of　the　single　evaluation　models,　it　applies　Kendall　harmony　correlation　to　examine　the　compatibility.　Then　it　applies　the　combination　evaluation　models　including　average　model,　driftance　model,　and　cooperation　game　model　to　evaluate　service　enterprise　competitiveness,　applies　Spearsman　rank　correlation　coefficient　to　examine　the　consistency,　and　output　the　best　result　result.　Based　on　the　final　outputs　of　enterprise　resource,　enterprise　ability,　enterprise　performance　and　the　overall　competitiveness,　it　uses　K-means　method　to　make　clustering　analysis.　Finally,　it　makes　empirical　evaluation　on　the　postal　enterprises　competitiveness.　©　2011　IEEE.