The basic principle of light-guided Head-Up Display(HUD) technology is introduced with its technical advantages and feasibility.The current developing state of the technology at home and abroad is summarized.Then, an analysis is made to the critical technologies of the aviation light-guided head-up display, and the detailed indexes and parameters of the existed light-guided head-up displays are given through some examples.Finally, the technical bottleneck and potential application prospect are described based on the developing trends of the light-guided head-up display technology.