An augmented reality surgical navigation system allows the visualization of a superimposed display of virtual organs above the real surgical scene， making it convenient for doctors to perform surgery. This review covers the application of research into augmented reality technology in various surgical navigation systems in different clinical fields. Furthermore， in view of the fact that augmented reality technology provides an improved display for surgical navigation systems， this paper classifies and summarizes the intraoperative augmented reality display technology into three categories： video display technology， stereo display technology， and projection display technology. Additionally， the development， methods， and characteristics of projection distortion correction techniques for analytical and non-analytical surfaces are reviewed， with the aim to cover the key mechanisms of the most promising projection display technologies. Finally， the limitations and future scope of the projection display technology are prospected.