The soil samples from three sites Dangwu in Huaxi, Xiazi in Zunyi and Muza in Anlong, Guizhou Province are chose as research objects. The relevant element content and the features in migration process from the rock to soil as well as the laterite-forming capacity coefficient are studied from the point of geochemistry. The results show that leaching of mineral nutrient elements in limestone is comparatively strong, and the mineral nutrient element content is lower in the soil developed from pure limestone in particular.