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Healthy volunteers were randomly divided into TFH group(22 subjects) and placebo control group (20 subjects). We used double-blind method. The cardiac performance and hemodynamics of the subjects before and after administration of TFH or placebo were determined by Admittance and STI methods, Oral TFH in a dose of 10 mg could significantly decrease the PEP/LVET, ICT/LVET and ICT of the mormal subjects(P＜0.05). Oral TFH could increase SV(P＜0.05). CO, CI, SWI, CWI and LI also tended to increase. Oral TFH also markedly reduced TPR (P＜0.05) and increasedc (P＜0.05). After administration of TFH, HR and HP did not significantly change(P＞ 0.05). After administration of placebo, the parameters observed did not significantly change(P＞0.05). The above results show that TFH can strengthen myocardial contractility and pump function of the heart, reduce total peripheral vascular resistance and increase vascular clasticity in normal subjects.