[Objective] The research aimed to explore the effect of Sophora alopecuroides L.on mice's immune function and provide certain reference basis for the development of herd immunosuppressant.[Method] Eight-week-old Kunming mice divided into 3 groups(high-concn.group,middle-concn.group and low-concn.group) were continuously given medicine through intragastric infusion with the daily dose of 5,10,15 g/kg for 7 day.Mice infused 0.5 ml/d drinking water were taken as control group.In the lymphocyte transformation t...