Eye movement?based human?computer interaction can enhance the immersion and improve comfort of users by using eye?movement characteristics， and the incorporating of eye movement?based interaction techniques in Virtual Reality （VR） system plays a vital role in the popularity of VR systems， which has become a research hotspot in recent years. Firstly， the principles and categories of VR eye movement?based interaction techniques were described， the advantages of combining VR systems with eye movement?based interaction techniques were analyzed， and the current mainstream VR head?mounted display devices and typical application scenarios were summarized. Then， based on the analysis of experiments related to VR eye tracking， the research hotspots of VR eye movement were summarized， including miniaturized equipment， diopter correction， lack of high?quality content， blurring and distortion of eyeball images， positioning accuracy and near?eye display system， and the corresponding solutions were prospected for those related hot issues.