AIM The purpose is to study the pharmacological action of the extracts from Smilax china L. on promoting blood circulation to remove blood stasis. METHODS ig the high (100 g/kg) and low(50 g/kg) dose of the extract with water from Smilax china L.(I),the extract with n-butanol from Ⅰ (Ⅱ)and the remainder(Ⅲ) to mice and drawing blood from eyepit after seven days. Activated- partial thromboplastin time (APTT), prothrombin time(PT) were measured by turbimetry method and fibrinogen(FIB) was determined by deri...