OBJECTIVE To investigate the efficacy and safety of Shenxiang suhe pill in the adjuvant treatment of triple vessel lesion of coronary artery. METHODS From February 2019 to February 2021，146 patients with unstable angina pectoris and triple vessel lesion of coronary artery （chest discomfort of hanning xinmai type ）admitted to Harrison International Peace Hospital were divided into observation group and control group according to random number table ，with 73 cases in each group. Control group was given Isosorbide dinitrate tablets+Aspirin enteric-coated tablets+Clopidogrel bisulfate tablets+Atorvastatin calcium tablets+ Bisoprolol fumarate tablets for western medicine treatment. Observation group was additionally given Shenxiang suhe pill 0.7 g/time orally after meal ，twice a day ，on the basis of control group. After 2 courses of treatment （3 weeks as a course of treatment ，with an interval of 1 week for each course of treatment ），curative effect and symptoms of angina pectoris [frequency and duration of angina pectoris ，walking distance of 6-min walking test （6MWT）]，TCM syndrome score ，cardiac markers [neutrophil to lymphocyte ratio （NLR）and the contents of endothelin-1（ET-1），nitric oxide （NO），soluble suppression of tumorigenicity 2 （sST2），angiotensin Ⅱ（Ang-Ⅱ）] and quality of life [Seattle angina questionnaire （SAQ），36-item short form health survey （SF-36）] before and after treatment were compared between the two groups. Adverse drug reactions （ADR）during treatment and major adverse cardiovascular events （MACE）during follow-up were recorded. RESULTS The total response rate of the observation group was 86.30％，significantly higher than 71.23％ of the control group （P＜0.05）. Before treatment ，there was no statistical difference in the above indexes between 2 groups（P＞0.05）. After treatment ，the frequency and duration of angina pectoris ，TCM syndrome score ，NLR and the contents of sST 2，ET-1 and Ang- Ⅱ in the two groups decreased or shortened significantly ，while the walking distance of 6MWT，NO content ，scores of each dimension in SAQ and SF- 36 increased significantly ；and the above indexes in observation group were significantly better than those in control group （P＜0.05）. There was no significant difference in the inciden ce of ADR between the two groups （P＞0.05）； however，the incidence of MACE in observation group was significantly lower than that in control group （P＜0.05）. CONCLUSIONS In the treatment of adjuvant treatment of triple vessel lesion of coronary artery ，Shenxiang suhe pill can improve the symptoms of angina pectoris and vascular endothelial function ，reduce the incidence of MACE ，improve the quality of life ，and has good safety.