Abstract：The fractal dimension is an objective characteristic of many natural phenomena and things. This paper shows that the vertisol's particle-size distribution has the fractal characteristic. In terms of the different terrain and land use / land coverage, 22 soil samples from different profiles (0~20cm, 20~40cm, 40~60cm) were collected from different regions in Zhangzhou Plain. The variations of the fractal dimension of vertisol’s particle-size distribution in Zhangzhou Plain and the relationship between the fractal dimensions and the vertisol's properties were investigated. It is shown that the fractal dimension of the soil particle-size distribution (0~40cm) ranges from 2.756 to 3.002 for the 22 soil samples. The fractal dimension increases with the depth. In addition, the regression analysis indicates that the boundary between positive and negative correlations is 0.1mm. The fractal dimension of the soil particle-size distribution is negatively correlated with the amount of particles with diameter >0.1mm and positively correlated with the amount of particles with diameter <0.1mm. The fractal dimension increases with the increase of the grass cover ratio. Also, the fractal dimension varies with the terrain, among which the downslope has the highest dimension and the terrace has the lowest.