本文分析了急性心肌梗死682例中确诊为急性正后壁心肌梗死的住院患者56例，提出急性正后壁心肌梗死的心电图有五个特征、认为临床典型心绞痛症状出现＞30分钟或非典型心绞痛伴有大汗、恶心、呕吐者加上五个心电图特征的任何两个可考虑为急性正后壁心肌梗死。具备的特征越多，临床诊断的可靠性越大。 This article analyzes the 682 cases of acute myocardial infarction diagnosed as acute posterior wall myocardial infarction hospitalized 56 patients, proposed acute posterior wall myocardial infarction ECG has five characteristics, that clinical symptoms of typical angina> 30 minutes or atypical angina Any two with sweating, nausea, vomiting plus five ECG features can be considered acute posterior wall myocardial infarction. The more features available, the greater the reliability of clinical diagnosis.