Polymer stability vertical alignment (PSVA) liquid crystal display mode has excellent electric-optic characteristics. In order to improve the transmittance of PSVA display mode, chiral polymer stability vertical alignment (C-PSVA) display mode was established by adding chiral monomer into liquid crystal. In this paper, the optimal parameters of C-PSVA display mode and its actual display effect were studied. Firstly, models were established to simulate the electric-optic characteristics and liquid crystal molecule alignment of C-PSVA display. The effect of chiral monomer on orientation of liquid crystal and the working principle of C-PSVA display mode were analyzed. Then, the effects of retardation, polarizer angle and chiral monomer ratio on the transmittance of C-PSVA display were studied. Finally, C-PSVA display samples were made according to the simulation results, and the actual effects were compared with PSVA display samples. The results show that the transmittance of C-PSVA display is obviously higher than that of PSVA display mode. The optimal retardation of C-PSVA display mode is about 460 nm, and the optimum pitch value is 4 times cell gap. The practical application results demonstrate that the transmittance of C-PSVA display mode is increased by 13% compared with PSVA display mode.