There is now increasing recognition of the closely linkage between plants and soil biota.Plants changes both the physical and chemical features of soil and influence the structure and composition of soil community by rhizosphere and litter.On the contrary,soil biota influence plans diversity by physiologically process and behavior.They will consolidate and strengthen the specific of degree about thr entire aboveground and belowground ecosystem by positive and negative feedbacks.We will discuss how the plants and soil interact and influence the ecological biota characteristics each other in this thesis.