The　generation　of　permanent　high-grade　conducting　layer　on　the　surface　of　polyvinylidene　fluoride(PVDF)　was　induced　by　248　nm　KrF　excimer　laser　irradiation.　The　results　of　XPS　and　FTIR　spectra　indicated　that　the　photochemical　reaction　was　occurred　on　the　surface　of　samples　and　the　microstructure　was　changed　by　laser　light　to　generate　HF　gas,　then　resulted　in　high-stability　and　high-uniformity　conducting　layer　on　the　surfaces.　After　analyzing　and　calculating　the　relationship　between　laser　processing　parameters　and　surface　conductivity,　the　laser　energy　density　of　44~112　mJ/cm2　was　determined.　The　conductivity　of　the　changed　surfaces　was　increased　to　12　orders　of　magnitude　which　reached　to　10-1　Ω-1　·　cm-1.　Based　on　the　discovery　of　conducting　layer,　the　mechanism　of　electrical　conduction　on　PVDF　surface　was　discussed.