Objective To probe into the relationship of electrocardiographic changes in acute anterior myocardial infarction（AAMI）with ST-segment elevation pattern and the infarction related coronary artery.Method Surface electrocardiograms in 84cases of patients suffering from AAMI with ST-segment elevation pattern verified through coronary artery angiography（CAG）were retrospectively analyzed.Results I

ST segment elevation of AVL lead

Ⅲand AVF depression were found in AAMI.Infarct sites were mainly located in proximal or distal segment of left anterior descending branch with lesion in the first diagonal branch

of which the sensibility and specificity were 67.6%and 84.0%respectively.For patients suffering from AAMI withⅡ

Ⅲ and ST segment elevation of AVF lead

vascular lesions were mainly located in proximal segment of LAD

middle segment and left circumflex artery（LCX）

or distal segment of LAD

of which the sensibility was 61.5%and the specificity was 97.5%.Conclusion Electrocardiogram can be used to preliminarily diagnose patients suffering from AAMI with ST-segment elevation pattern and it is correlated with sites of arterial occlusion

which will be of great value for clinical reference.