Theoretical research and experimental simulation are carried out on the properties of corner cube array retroreflector. The optical path of the ray incident on a single pyramid is analyzed in detail. Meanwhile, the diffraction characteristics of two kinds of structures (triangular corner cube array and pentagonal corner cube array) are studied. The effect of pyramidal depth on the imaging quality of corner cube array is discussed, and the simulation results are given under the different parameters. The results provide theoretical foundation for the design of corner cube and its applying in the three-dimensional display.