本文观察了１５５例海洛因依赖者的心电图改变，其中１３例进行了无创性心功能检查，发现心电图异常率高达７６．１３％，其中心肌供血不足１０７例（６９．００％），窦性心律不齐５２例（３３．５０％），窦性心动过缓并不齐２０例（１２．９０％），心电轴右偏１７例（１０．９０％），其它还有窦性心动过速或过缓，不完全性右束支传导阻滞等；１３例心功能的结果与健康者１４例比较，ＳＶ，ＣＩ，ＥＴ等三项指标差异有显著性（Ｐ＜０．０１，或Ｐ＜０．０５，０．００１）。揭示了海洛因滥用对心脏有确实的损害 In this paper, 155 cases of heroin dependent ECG changes were observed. Among them, 13 cases had noninvasive cardiac function tests, and the abnormal rate of electrocardiogram was 76.13%, in which 107 cases (69.00%) had insufficient myocardial blood supply, and sinus rhythm There were 52 (33.50%) cases of sinus bradycardia and 20 (12.90%) cases of sinus bradycardia and 17 cases (10.90%) of the right deviation of the cardiac axis. Other patients had sinus tachycardia or Bradycardia, incomplete right bundle branch block and so on. The results of 13 cases of cardiac function were compared with those of 14 cases of healthy subjects. There were significant differences among the three indexes of SV, CI, ET (P <0.01 or P < 0.05, 0.001). Revealed that heroin abuse did have a real damage to the heart