Based on field investigation carried on three loess high-cutting slopes in Xi'an City and combining indoor moisture content test, the influence of the slope position, slope gradient, slope direction, vegetation type and vegetation protection mode of the loess cutting slope on spatial characteristics of soil moisture was studied. The result showed that soil moisture content was greater in middle slope site than that in downhill, in downhill was greater than that in uphill; in high slope level was greater than that in low slope level; in low gradient slope was greater than that in the high gradient slope; in cloudy slope was greater than that in sunny slope; in ground vegetation was greater than that in the vertical vegetation; in the slope with grass and shrub combination mode was smaller than that in the single shrubs mode, but the growth of the former was better than the latter.