Inthispresentstudy,theruodeloftherabbitwithacutemyocardialischemia（AMI）wasusedtoexploremechanismsofinterrelationhetweenNeiguanacupoint（PC6）ofthePeri-cardiumMeridianandthehearthyemployingphysiologicalandmorphologicaImethods.Itwasdemonstratedthatelectroacupuncture（EA）atNeiguan（PC6）couIdraisetheeIectricalexcitahilityofischemicmyocardium,lessenthedispersityofrecoveryexcitability,correctthedisorderofelectricalactivity;protectmyocardiacglycogenandphosphorylaseandalleviatetheirdepletion,increasecontentofribonucleiacid（RNA）,etc.,indicatingthatEAcouldhelpoxidativernetaholismcarryoutnormal-IyandirnProvenutritionalstateoftheischemicmyocardiurn.ThekeypointofEAactionisprobablyregulatesthecoronarymicroclrculationofheartandreclistributesmyocardialbloodflow.Studieswithalkalinephosphatase（ALP）,Mg2--ATPaseandABScastingoftheIeftcoronaryarteryshowedthatafterEAthenumberandtheIengthof
