Laser-guided weapons play a crucial role in modern warfare.The missiles and other weapons are directed to accurately strike targets by using the precise guidance information obtained through lasers，making them one of the key factors that influence the course of the battle and determine victory or defeat.This paper summarizes the typical semi-active laser-guided weapons，including various types of laser-guided bombs and missiles，multi-mode composite guided weapons with semi-active laser guidance，target laser designators，in the world and the current development status of anti-jamming methods.On this basis，the principles and technological core of semi-active laser-guided weapons are analyzed in depth.In response to the existing technical challenges and development obstacles，it is proposed that the future semi-active laser-guided weapons will evolve towards multi-mode composite，multi-jamming integration，multi-protection combination，as well as miniaturization，generalization，and multi-functionality.