Abstract: Thin film materials have been widely used in micro electronics,superconductor,and bioceramics materials. In order to obtain high quality thin films,deposition have attracted more attention. In this paper the principle,the characteristics of the pulsed laser deposition technique are introduced. Its applications in semiconductor,high temperature superconductor,diamondlike,ferroelectric and bioceramics thin films and its current research status are reviewed. The future application trend is prospected.