The objective of this study was to clarify the soil stoichiometric characteristics of three vegetation areas (forest area, forest-meadow area and meadow area) in loess hill and gully region. The soil at different slope aspects were selected to measure their organic carbon (C), total nitrogen (N), total phosphorous (P), and total potassium (K) contents. The results indicated that there were obvious differences in soil nutrient contents and their stoichiometry under different vegetation areas and slope aspects. The C and N had larger variability, the P and K had smaller variability. Soil nutrient contents of surface were higher than the sub-layer soil. The C and N had larger variability than the P and K in the same soil layer. Sunny slope's nutrient content was the least. Soil nutrient contents were influenced by vegetation types and coverage. Soil C/N、C/P、C/K、N/P、N/K ratio were relatively stable, C/N ratio range from 5.65 to 12.57, and the mean value was 9.44; C/P ratio change from 3.62 to 17.32, the mean value was 8.15;C/K ratio change from 0.10 to 0.55, the mean value was 0.26; N/K ratio change from 0.01 to 0.05, the mean value was 0.03;P/K ratio was roughly unchanged at 0.03. The organic C was very significant correlation with the total N and there was significant correlation between total P and K.