In　this　paper,　a　novel　method　of　fabricate　lead-free　piezoelectric　sodium　potassium　niobate　[(K,Na)NbO3,KNN]　thin　films　was　proposed.　The　KNN　thin　films　were　directly　sintered　on　glass　substrate　at　room　temperature　by　pulsed　laser.　And　all　of　the　steps　do　not　need　vacuum　conditions.　Compared　with　conventional　preparation　techniques,　such　as　RF-magnetron　sputtering　and　metal-organic　chemical　vapor　deposition　(MOCVD),　this　method　is　more　simpler　and　faster.　The　surface　morphology　of　KNN　thin　film　was　observed　with　scanning　electron　microscopy　(SEM),　phase　composition　and　structure　were　characterized　by　X-ray　diffraction　(XRD).　These　results　indicate　that　the　KNN　thin　film　was　succeeded　fabricated　by　the　method.　©　2012　IEEE.