This paper deals with the application of LANDSAT images in survey of the distribution of the major soils including red earth, yellow-brown earth and cinnamon soil in Hubei Province, and the promotion of the reliability of LANDSAT image interpretation for the delimitation of the soils. Central conception and numerical analysis were used and soil colour, concretions, pH values, degree of base saturation and dominant clay minerals were selected as the diagnostic indexes, which were used for the delimitation of the main soil types in this region. The boundaries of distribution of the soils delineated by the methods mentdoned above well codncided with those of LANDSAT images.