As　time　goes　by,　the　aged　satellite　sensors　have　made　the　original　Calibration　Parameter　File　(CPF)　of　the　sensors　become　invalid.　Typically　the　CPF　of　the　Landsat-5　Thematic　Mapper　(TM)　was　modified　several　times　since　its　launch　in　1984,　and　so　did　the　CPF　of　Landsat-7　Enhanced　Thematic　Mapper　Plus　(ETM+).　Otherwise　the　accuracy　of　the　image　radiometric　correction　is　not　ensured.　In　this　study,　two　scenes　of　Landsat　TM　and　ETM+　images　have　been　corrected　using　their　CPFs　issued　in　2003　and　2009,　respectively.　These　radiometrically-corrected　images　were　then　compared　to　see　whether　there　was　any　difference　between　the　correction　results.　The　band-by-band　comparison　reveals　that,　except　the　green　band　of　ETM+,　the　mean　value　of　TM　and　ETM+　bands　calculated　with　the　2009　CPF　is　less　than　that　calculated　with　the　2003　CPF.　This　also　has　influenced　on　the　Normalized　Difference　Vegetation　Index　(NDVI)　and　build-up　index　(IBI)　computation.　The　difference　in　the　mean　value　between　the　NDVIs　calculated　using　the　2003　and　2009　CPFs　amounts　to　0.48%,　while　this　figure　between　the　IBIs　can　reach　to　5.94%.