The core of meridians theory consists of the specific somatosomatic and somatovisceral relationship，however，the specific somatosomatic relationship has not been drawn considerable attention.If this question will not be resolved，the theory of the selection of acupoints according to meridians pathway in acupuncture clinic has failure of scientific evidences.In recent ten years，amount of research revealed that there existed specific somatosomatic relationship following injuries of somatosensory afferens，which is closely related with brain plasticity.