Abstract:Objective: The factorial design method of effective parts of Astragalus 2×2×2 (Astragalus flavonoids, polysaccharides of astragalus and Astragalus saponin) was used analyze intervention of effect and mechanism in hemorrhagic anemia model mice and their interaction. Method: One hundred and eight mouse randomly were divided into 9 groups, 12 each group. In addition to normal group, orbital venous bleeding was executed at 1, 4,7 day, rasprctively, bloodletting is 0.5 mL·20 g-1, normal groups, model groups and intragastric infusion were given with distilled water 10 g·kg-1, other groups were given corresponding drugs with dose of 0.166, 0.445, 0.611, 0.069, 0.235, 0.514, 0.680 g·kg-1. Factorial design analysis of variance methods was used to analyze peripheral hemoglobin (Hb) concentration, red blood cell (RBC) count, hematocrit (Hct), hematopoietic factors such as indicators for analysis of variance. Result: Compared with normal group, peripheral blood Hb, RBC, Hct, erythropoietin(EPO), serum transcription factor(GATA-1) in serum and kidney tissue, bone marrow, such as stem cell factor(SCF) index differences are statistically significant in model group(P<0.05). Flavone,polysaccharide and saponins glycoside had an obvious effect on peripheral blood (P<0.05), combined application of flavone and saponins glycoside and polysaccharide and saponins glycoside showed a better action than single medication; flavone and polysaccharide had influence on serum EPO, GATA-1 and bone marrow SCF concentration, polysaccharide and saponins glycoside had effect on kidney organization EPO concentration. Conclusion: Combination of polysaccharides and saponins can improve peripheral blood in anemia mice picture.