Abstract: The principle and methods of laser guidance are reviewed, with several typical models of laser-guided weapons as examples to illustrate the development in this field in the USA.The relative merits and future development of precision guided weapons are also analyzed in depth.The principle and methods of laser guidance are reviewed, with several typical models of laser-guided weapons as examples to illustrate the development in this field in the USA.The relative merits and future development of precision guided weapons are also analyzed in depth.