Waste　liquid　crystal　display　(LCD)　panels　contain　a　significant　amount　of　rare　precious　metal　In,　and　In　extraction　is　also　the　industry＇s　driving　force　There　are　currently　many　reports　on　the　recovery　of　In　from　waste　LCD　panels,　but　there　are　not　many　on　the　recovery　of　organic　components　from　waste　LCD　panels,　particularly　polarizing　film　recovery.　Pyrolysis　is　one　of　the　most　promising　technologies　for　organic　waste　recycling.　This　work　utilized　TG,　TG-FTIR,　and　Py-GC/MS　to　examine　the　pyrolysis　properties　and　product　distribution　of　the　polarizing　film.　Additionally,　a　range　of　kinetic　analysis　methods　and　density　functional　theory　calculation　were　utilized　to　examine　the　pyrolysis　kinetics　and　mechanism　of　the　polarizing　film.　Polarizing　film　are　mainly　composed　of　cellulose　triacetate　(CTA),　triphenyl　phosphate　(TPHP),　polyvinyl　alcohol　(PVA)　and　polyacrylate.　The　results　showed　that　CTA　first　breaks　the　glycosidic　bond　through　a　synergistic　reaction　to　form　an　active　CTA　with　a　low　degree　of　polymerization,　and　then　forms　small　molecule　compounds　such　as　glucan　triacetate　analog,　methylglyoxal,　and　allyl　benzoate,　among　others,　through　free　radical　reactions.　PVA　first　forms　long-chain　olefins　through　a　dehydration　process,　and　then　short-chain　olefins　by　a　free　radical　reaction.　TPHP　may　merely　undergo　melting　and　evaporation　rather　than　undergoing　a　chemical　reaction.　Polyacrylate　generates　esters　and　aldehydes　mainly　through　free　radical　reactions.　This　study　provides　a　theoretical　foundation　and　comprehensive　reference　for　the　pyrolysis　and　recycling　of　waste　LCD　panels.