Currently， the most widely used three-dimensional（3D） display technology often uses the binocular parallax and transient visual effect of the human eye to generate the three-dimensional impression. The lack of depth information will lead to a conflict in the convergence adjustment and discomfort for the viewer. A true 3D display technology， light field display reproduces light on an object's surface， offers a positive user experience， and it satisfies people's needs for future displays. In this paper， the principles and characteristics of various light field display technologies were combed， the development of light field display technologies at home and abroad were analyzed. Then， the research progress and the performance of representative prototypes were sorted out. Finally， the development of light field display in China was prospected. Despite China's light field exhibition getting off to a rather late start， it has earned some notoriety abroad thanks to the combined efforts of various academic organizations.