In the liquid crystal display (LCD) system, the main reasons for the low quality of moving image are the characteristic of holding type display and the slow response. In order to study the influencing factors of moving image quality of LCD, a simulation model of moving image perception effect of LCD is established. The simulation model takes the different response speeds of the display, frame rates and backlight duty ratios as parameters, and simulates the moving image effect of the final perception of the human eye for different types of display images. Through the visual perception experiment, the simulation image is evaluated and the experimental results are statistically analyzed. The results show that the backlight duty ratio modulation can effectively improve the quality of moving image. The speed of response is positively related to the quality of moving image. The improvement of frame rate on the quality of moving image is limited by the response speed, that is, there is a cross influence between the two. The research results can provide theoretical reference for improving the moving image quality of LCD system.