Modern soil science possesses the clear landscape ecology features because of its research background, attribute and practice. Therefore the studies on soil science need the guidance of landscape ecology. For the reasons of soil research scales, the spatial and temporal variability of soil prosperities and the dynamics of soil process, the landscape ecology principles should be applied to the large-scale soil research and the combination of them is a trend of soil science. Soil research scope will be further expanded by the applications of landscape ecology theories besides many others science progresses. By the presentation of some research trends related with landscape ecology and soil science and the landscape ecology nature of soil research such as land use, soil erosion, soil non-point source pollution, the paper gives the theoretical and practical significance of landscape ecology principles application in the soil science.