[Objective] The relationship between laterite disintegration characteristics and the occurrence of slumping erosion was investigated in order to provide a theoretical basis for slope management. [Methods] The basic parameters of slumping slopes such as slope gradient and angle of repose were measured; the characteristics of laterite agglomerates and the disintegration process under alternating wet and dry conditions were experimentally determined; and the conditions of the slope, stability of laterite water-stable agglomerates, and changes of the disintegration characteristics of the slumping erosion area were analyzed. [Results] ① Slope gradient and angle of repose were two factors that influenced the occurrence of slumping erosion. Sloughing was unusual in loess plateau areas with slope gradients of 40° or less and was considerably weakened by gradients greater than 80°. The natural angle of repose between red soil and slumping slopes varied from 25° to 36°. ② Most of the laterite agglomerates easily disintegrated when exposed to water because they were non-hydrostable and had weak stability, resulting in sloughing and erosion. The average mass diameter (MWD) and geometric mean diameter (GMD) of the laterite agglomerates were 2.16 mm and 1.37 mm for dry sieve and 0.51 mm and 0.25 mm for wet sieve, respectively. The percentage of agglomerate destruction (PAD) was 57.66%, with a fractal size D of 2.96. aggregate stability index (ASI) is a metric that represents the overall stability of agglomeration in the transfer matrix method, and the red clay ASI in this study was 1.75. ③ Dry-wet alternation reduced the rate of slumping erosion by reducing laterite disintegration. The highest disintegration index was 81.79%, and the average disintegration rate was 51.03 g/min. The disintegration degree of the laterite was lowered under the dry-wet alternation condition compared to under the natural state. The maximum disintegration index of the laterite varied between different dry-wet alternation circumstances but the difference was not statistically significant. ④ Laterite disintegration rates were favorably linked with the angle of repose, slope gradient, and ASI (p＜0.01) of the slumping erosion. [Conclusion] Laterite disintegration properties are directly related to slumping erosion, and dry-wet alternation reduces the rate of slumping erosion by reducing laterite disintegration.