Objective To investigate the effects of atorvastatin combined with aspirin on carotid atherosclerotic plaque and blood biochemical parameters in patients with minor stroke. Methods 120 patients with acute minor stroke were randomly divided into A group, B group and C group, 40 cases in each group in 40 cases.On the basis of conventional treatment, A B, C groups, were given 10, 20, 40mg atorvastatin+ 100mg aspirin, continuous medication for 6 months.Before and after treatment, the lipid metabolism and oxidation indexesindices, blood rheological parameters, carotid IMT and plaque area were compared among the three groups. Results After treatment, TC, TG, LDL, HOMA-IR, IMT and plaque area were significantly decreased in all groups(t=12.687, 3.653, 10.590, 3.675, all P<0.05), and TC, TG, LDL, HOMA-IR, IMT and plaque area of C group were significantly lower than those of A group and B group, the differences were statistically significant(F=63.315, 5.987, 4.876, 4.354, 3.657, 3.887, all P<0.05). After treatment, fibrinogen, plasma viscosity, erythrocyte rigidity index and hs-CRP were significantly decreased(t=3.437, 4.325, 3.876, 3.487, all P<0.05). And the hs-CRP of C group were was significantly lower than those that of A group and B group, the difference was statistically significant(F=4.532, P<0.05). Conclusion Atorvastatin combined with aspirin can significantly improve the carotid atherosclerotic plaque and blood biochemical parametersindexes in patients with minor stroke, and high dose atorvastatin has better effect in on patients with' carotid plaque, lipid metabolism and inflammatory reaction better effect. Key words: Stroke; Atorvastatin; Aspirin; Carotid artery; Atherosclerosis