Spatial variability and fractal dimension of soil water and bulk density were studied in a soil grown with winter wheat. The area of each plot was 7.5m×7.5m. The measured grid unit was 0.5m×0.5m. Two methods, soil sampling and time domain reflectometry, were employed to determine the gravimetric (θ_g) and volumetric (θ_v) water contents. Soil bulk density (ρ) was calculated from θ_v/θ_g.The data were analyzed with both traditional and geographical statistical methods. Some difficulties were met with the traditional statistical technique. Combined with fractal theory, the fractal dimensions of θ_v,θ_g and ρ were determined, being 1.58-1.75, 1.67-1.75, 1.77-1.83 respectively. Our results suggested that the soil was not a medium with theoretical fractal phenomenon, and the fractal features only existed in the range of specific space.