Controlled by soil forming factors, the origination and development of earth soil had been experiencing contrasting environmental changes and corresponding processes. Previous studies have shown that the earliest weathering regolith appeared during the Archean Eon, with evolution of the Earth, biological forcing had been involved in soil formation and soils as defined by the modern concept got appeared during the Cambrian period. Over the geological periods soils formed and developed in episodic changing environments while the formation of soil and the establishment of soil cover (pedosphere) gave feedback to landscape evolution, topography, ecosystem and atmospheric system, therefore substantially changing atmospheric composition and altering global biogeochemical cycling. The formation of pedosphere is a prerequisite of the inhabitable earth.