Objective: To observe the effects of Buyang Huanwu decoction on clinical efficacy and hemorheological indicators in treatment of pulmonary heart disease. Method: Eighty patients with pulmonary heart disease were randomly divided into observation group (40 cases) and control group(40 cases).The control group was treated with conventional western medicine.The observation group took Buyang Huanwu decoction on the basis of conventional therapy. Two groups were continuous treated for 30 days.The changes in hemorheological parameters

D-dimer level and cardio-pulmonary function parameters in the two groups were observed before and after treatment. Result: After treatment 30 days

hemorheological parameters

D-dimer level of two groups were significantly better than those before treatment (P＜0.05 or P＜0.01). Hemorheological parameters

D-dimer level of the observation group were significantly improved than the control group(P＜0.05 or P＜0.01). Indicators of heart-lung function and arterial blood gas of two groups were significantly better than those before treatment (P＜0.05 or P＜0.01). Indicators of heart-lung function and arterial blood gas of the observation group were significantly improved than that of the control group(P＜0.05 or P＜0.01).The observation group showed no adverse reactions after taking Chinese medicines. Conclusion: Buyang Huanwu decoction is effective in the treatment of pulmonary heart disease.It can reduce blood viscosity

improve heart and lung function with good safty.