The geostatistics were used for analyzing the spatial variability of the soil particle composition in Mengding tea plantation with two sampling scales at Sichuan province. The result indicated that all of the composition of the soil particle-size in tea plantation soil with the small scale in Mengding mountain had a strong spatial relativity, but only clay had a strong spatial relativity with the micro scale in a representative tea plantation field. Clay had the longest interrelated range in soil with small scale, on contrary, it hand the shortest interrelated range with micro scale. Anisotropy analysis illuminated that the primary aspect of the spatial variability was strong at north, northwest and northeast in tea plantation soil with the small scale, and all of the composition of the particle-size had a strong spatial variability in northwest except sand; All except sand had strong spatial variability in northwest, and the spatial variability of sand was not so obvious with small scale. The ordinary Kriging analysis indicated that there was not any visible rule in the spatial distribution of the particle composition with small scale. The equivalence of the particle composition changed at the aspect of northwest with micro scale. The micro-terrain such as gradient, the length of gradient and the special modeof the mantle with tea plant were the primary factor that controlling the distribution of the particle composition.