The electro-pulses S_Ⅰ and S_Ⅱ with specific parameters were input to Hegu(LI4)of Hand-Yangming Large Intestine Meridian and Zulinqi(G41)of Foot-Shaoyang Gallbladder Meridian. The output(response) messages were accepted at Shousanli(L110), Yang lingquan(G34) (which were distal to heart), and Binao(L114), Fengshi (G31) (which were proximal to heart), and control points bilateral to above acupoints on these two meridians Investigations were made on the Artocorrelation Funtion of input and output messages through a Singnal Processing Apparatus. ...