Passively Q-switched solid-state lasers with high repetition rates can be widely used in many fields like precision laser radar,miniature laser source,environmental detection and fine processing,which have attracted considerable interests as narrow pulse laser source in recent years.The main techniques for improving the laser′s performance include passively Q-switched oscillator,actively-controllable passively Q-switched laser and power amplifier.In this paper,the domestic and international progress on high repetition rates passively Q-switched solidstate lasers are summarized from the above three aspects and the various embodiments of every scheme.In addition,the prospect and applications of the lasers are discussed in the article．