[目的]观察银杏达莫注射液联合西药治疗不稳定性心绞痛的临床疗效。[方法]将56例不稳定性心绞痛患者随机分为两组,对照组26例给予常规西药治疗,治疗组30例在常规治疗的基础上加用银杏达莫注射液,疗程均为14d,观察两组治疗前后临床疗效和心电图变化情况。[结果]两组患者心绞痛发作疗效、心电图总有效率比较,治疗组优于对照组(P<0.05)。[结论]银杏达莫注射液联合西药治疗能有效减少不稳定性心绞痛患者的发作频率、持续时间和心肌耗氧量,疗效优于单纯西药常规治疗,值得临床推广和应用。 [Objective] To observe the clinical efficacy of gingko Damo injection combined with western medicine in the treatment of unstable angina pectoris. [Method] Fifty-six patients with unstable angina were randomly divided into two groups. The control group received conventional western medicine. Thirty patients in the treatment group received gingko-damo injection on the basis of routine treatment for 14 days. The two groups before and after treatment of clinical efficacy and ECG changes. [Results] The curative effect of angina pectoris and the total effective rate of ECG in the two groups were better than those in the control group (P <0.05). [Conclusion] Gingko Damo injection combined with Western medicine can effectively reduce the seizure frequency, duration and myocardial oxygen consumption in patients with unstable angina pectoris, and the curative effect is superior to that of conventional western medicine alone. It is worthy of clinical promotion and application.