Baking　oven　sintering　technology　is　the　traditional　method　to　prepare　polytetrafluoroethylene　(PTFE),　fluoroethylenepropylene　(FEP)　and　polyfluoroalkoxy　(PFA)　coating.　In　order　to　solve　the　drawbacks　of　the　traditional　technique,　a　new　preparation　method　by　laser　sintering　is　presented　in　this　paper　in　which　the　PTFE,　FEP　and　PFA　coating　are　prepared　by　1070　nm　continuous　fiber　laser　irradiation　replacing　traditional　hightemperature　baking　oven　curing　process.　Meanwhile,　by　controlling　laser　scanning　path,　the　preparation　of　the　graphical　PTFE,　FEP,　PFA　coatings　is　achieved.　The　optimized　processing　parameters　are　obtained.　Analysis　indicates　that　the　preparation　mechanism　is　based　on　the　thermal　effects　of　laser　energy　input,　which　induces　the　original　powder　sprayed　layer　turn　into　molten　state　then　promotes　the　crosslinking　curing　for　the　formation　of　the　coating.　The　whole　process　acts　as　physical　change　without　any　changes　of　chemical　composition　of　the　material.　©,　2015,　Science　Press.　All　right　reserved.