Byreviewingthetraditionalmeasuremethodsoftheintegrationdegreeofthetourismindustry,weconcludedthatmeasuremethodsoftheintegrationdegreeofthetourismindustrycanonlybelimitedtothelevelsoftheoreticalanalysisduetothedefectofthestatisticaldataandthestatisticalstructure.Withthehelpofconceptoffusionfieldandfusionentropyofthetourismindustry,aphysicalmodelofintegrationofthetourismindustryisestablishedandindexsystembasedonAHPisproposed.UsingAHP-fuzzycomprehensiveevaluationmethod,theintegrationdegreeofJiangsuandthecountry’stourismindustryarestudied.Theinfluencingfactorsareanalyzedandthecorrespondingcountermeasuresareproposed.