The　treatment　and　recycling　of　discarded　crystalline　silicon　photovoltaic　modules　(c-Si　PV　modules)　has　become　a　research　focus,　but　few　research　have　paid　attention　to　the　standardized　treatment　of　c-Si　PV　module＇s　fluorinated　backsheet.　Improper　management　of　fluorinated　backsheet　can　pose　ecological　and　human　health　risks.　Therefore,　this　study　presents　a　novel　method　for　processing　the　backsheet.　The　proposed　approach　entailed　the　utilization　of　ethanol　(CH3CH2OH)　to　separate　the　backsheet　from　the　PV　module.　Subsequently,　the　separated　backsheet　underwent　decomposition　using　an　alkaline　ethanol　(NaOH-CH3CH2OH)　solution.　Finally,　the　backsheet　was　recovered　in　the　form　of　terephthalic　acid　(TPA)　with　a　purity　of　97.47　%.　This　recovered　TPA　can　then　serve　as　a　valuable　raw　material　for　producing　new　backsheets,　fostering　a　closed-loop　material　circulation.　Experimental　results　demonstrate　that　immersing　the　PV　module　in　a　75　%　CH3CH2OH-H2O　solution　at　a　temperature　of　343　K　for　30　min　achieved　100　%　separation　of　the　backsheet.　Furthermore,　subjecting　the　separated　backsheet　to　a　60　min　reaction　in　an　NaOH-CH3CH2OH　solution　with　a　temperature　of　343　K　and　a　NaOH　concentration　of　1.0　mol/L　achieved　complete　decomposition.　The　reaction　mechanism　was　analyzed　through　characterization　methods　such　as　SEM/EDS,　NMR,　FTIR　and　XRD.　This　method　is　efficient,　non-toxic　organic　reagent-free　and　environmentally　friendly,　so　it　holds　significant　potential　for　further　development　in　the　field　of　c-Si　PV　module　recycling.