The experiments were carried out on 36 normal subjects.Pain stimulation points are atNeiguan or Hegu and pain stumulation nonpoints are nearby Neiguan or Hegu.The Record loca-tions are at vertex and cervical vertebrae.The feature of evoked cerbrebral potential(ECP)and spinal cord ovoked potential(ESP)bypain stimulation the points or non-points were studied.The results have been obtained.1.Pain stimulation point ECP generally consists of wave P1、N1、P2、N2、P3、N3、P4 and N4.There is a certain amplitude and latency of each wave.2.The elements of pain stimulation non-point ECP are Similar to point ECP in the feature.Camparing Pain stimulation Point ECP with non-point ECP

the amplitude of wave P3-N3 ofstimulation point ECP increases(P<0.05)3.Pain stimulation Point ESP and non-point ESP consist of wave P1、N1 and P2、N3.Cam-paring Pain stmulation point with non-point there are no.significant changes in the amplitude andthe latency of ESP.