Objective To investigate the effect of Tongxinluo capsule combined with metoprolol on elderly patients with coronary heart disease and angina pectoris and its influence on hemorheology and inflammatory factors. Methods 135 elderly patients with angina pectoris of coronary heart disease were selected, and they were randomly divided into treatment group (68 cases) and control group (67 cases). The treatment group was treated with Tongxinluo capsule combined with metoprolol, while the control group was treated with metoprolol.The two groups were treated for 8 weeks.The curative effect of the two groups was compared, the number and duration of angina pectoris, the changes of hemorheology and inflammatory factors before and after treatment were compared. Results The total effective rate of the treatment group (94.12%) was higher than 76.12% of the control group (P<0.05). After treatment, the frequency and duration of angina pectoris in the treatment group were (6.03±1.21)times/week and (3.02±0.76)min/time, respectively, which were significantly lower than those in the control group[(9.87±1.46) times/week and (4.86±0.98)min/time](t=16.649, 12.201, all P<0.05). After treatment, the whole blood viscosity at high shear rate[(3.76±0.41)mPa/s], whole blood viscosity in low shear[(8.13±0.76)mPa/s], plasma viscosity[(1.23±0.08)mPa/s], erythrocyte aggregation index[(2.06±0.27)], fibrinogen[(2.46±0.41)g/L]in the treatment group were lower than those in the control group[(4.53±0.52)mPa/s, (9.61±0.89)mPa/s, (2.09±0.27)mPa/s, (2.63±0.35), (3.53±0.62)g/L](t=9.562, 10.396, 25.170, 10.604, 11.844, all P<0.05). After treatment, the interleukin-6 (IL-6)[(8.49±1.76)pg/mL], intercellular adhesion molecule-1 (ICAM-1)[(85.25±8.92)pg/mL], C reactive protein (CRP)[(8.74±1.76)mg/L]in the treatment group were lower than those in the control group[IL-6 (11.32±2.10)pg/mL, ICAM-1 (103.42±10.72)pg/mL, CRP (14.98±2.24)mg/L](t=8.491, 10.712, 18.012, all P<0.05). Conclusion Tongxinluo capsule combined with metoprolol in the treatment of elderly patients with coronary heart disease angina pectoris has obvious curative effect, and can improve the patients' blood rheology and inflammatory reaction. Key words: Tongxinluo capsule; Metoprolol; Coronary heart disease; Angina pectoris; Curative effect; Hemorheology; Inflammatory factor