ThepaperanalyzestheculturalcharacteristicsoftheModeloftheSouthoftheFiveRidgesandtheinstitutionalmeanings。Basedontheanalysis，thecultureoftheSouthoftheFiveRidgesisconsideredasaspiritualideaofinstrumentalrationalitytrend，whichfocusesonthecontemporarypracticalresultsandutilityandcanpreciselybethepreconditionsnecessaryfortheefficientoperationofthemarketsystem。Therefore，thepaperholdstheviewthattheeconomictransitioninGuangdongisamutualmatchingprocessbetweenthecultureoftheSouthoftheFiveRidgesandthemarketsystem。Onsuchbasis，thepaperputsforwardatheoryofmatchingthecultureandthemarketsystem，andsetsupasimpleminimizationmodeloninstitutionalmatchingcosttoexplaintheinherentmechanismandtheoreticallogicof‘themodeloftheSouthoftheFiveRidges’。Thenitisconcludedthatiftheformalinstitutionsmatchwiththeinformalinstitutions，theirmatchingcostwillbeminimized，whichthereforeformstheNashequilibriumsolutionforthewholeinstitution。