Abstract: The disintegration of road surfaces not only affects the lifespan of roads but also poses significant risks to driving safety. Currently, there is a lack of standards and evaluation criteria for the disintegration status of road surfaces in China. To address these issues, research has been conducted on the evaluation criteria for road surface uniformity, proposing an evaluation system specifically for the degree of road surface disintegration. Three-dimensional scanning technology is employed to obtain the three-dimensional point cloud of road surface texture. Utilizing layer-by-layer projection and Fourier analysis, parameters for evaluating road surface structure depth and frequency are calculated. The correlation between frequency parameters and structural depth is studied, leading to the proposal of a uniformity evaluation system based on texture frequency parameters. Additionally, a disintegration rate calculation is introduced based on this system to provide intuitive evaluation data for the degree of pavement disintegration. Experimental results demonstrate that the disintegration rate of the test section is 10%, with a correlation coefficient of 0.97 between frequency parameters and structural depth. The uniformity evaluation system based on texture frequency parameters demonstrated effectiveness in assessing the degree of pavement disintegration.