Soil is a complex natural system with strong spatial heterogeneity of its internal properties. The properties of soil are strongly varied even at the centimeter scale and the changes in soil properties on a large scale have a pivotal role in the patterns of ecosystem growth. Soil fertility is one of the most important ecological functions of soil and its spatial layout and structure directly affects the ability of plants to recover from stress as well as affecting plant height and overall ecosystem productivity. In the fragile habitats of the Guangxi area, the spatial distribution characteristics of soil nitrogen (N), phosphorus (P) and potassium (K) are strongly related to the regional distribution of shrub vegetation. Studies on the nutrient variability in forest soil of this area will help to understand the plant community structure and ecosystem energy flows. Forest resources are very rich in the Guangxi area making it one of the most important forest areas in southern China. Located in the southwest of China, Guangxi's forest is obviously geographically different to the rest of China. In recent years, the forested area of Guangxi has substantially increased through the introduction of a variety of tree species. This abundant introduced forest type is beneficial to economic development, but a lack of understanding of the nutrient distribution in forest soils in Guangxi has led to poor decisions regarding which tree species to introduce. This, in turn, has led to a decline in the quality of forest soil, has wasted resources and has limited the development of the forestry industry in Guangxi. This research investigated the main soil nutrients (N, P and K) of eleven forest types in seven forest districts in Guangxi. Geostatistics is used to study the spatial variation and pattern of the soil nutrients, and then the ecological implications of this were discussed to provide a scientific basis for forest division and management decisions in Guangxi. The results showed that the main forest soil nutrients in Guangxi had an overall medium level of variability but the variability of the soil available nutrients was larger than soil total nutrients, among which the variability of available P and K were largest. All the semi-variable functions of forest soil nutrients in Guangxi showed distinct spatial structural features. Soil total N and P and available P performed moderate spatial autocorrelation, while soil total K and available N and K performed strong spatial autocorrelation. The spatial structures of forest soil nutrients were diverse. The kriging contour maps showed that the soil N pool was abundant, the K pool was medium and the P pool was relatively low in Guangxi forest soils, and that the main soil nutrient contents in the north district of Guangxi was larger overall than in the south district. The spatial pattern of the main soil nutrients in Guangxi forests may be related to climate, precipitation, plantation forest species, topography and forest management practices and the effect of these factors on soil nutrients requires further investigation.