Objective To explore the effect of Xingnaojing injection on cognitive function recovery in patients with acute cerebral infarction. Methods 100 patients with cerebral infarction who were hospitalized from November 2015 to October 2016 were selected and randomly divided into experimental group and control group, with 50 cases in each group.The patients in the control group were treated with routine treatment of cerebral infarction, including treatment of blood circulation, intravenous drip of mannitol to reduce intracranial pressure, subcutaneous injection of low molecular weight heparin sodium anticoagulant, control of blood pressure and blood glucose to appropriate level, and prevention of venous thrombosis.On the basis of the control group, the experimental group received Xingnaojing injection treatment , according to moderate moderation dose and drip rate.We adjusted the dosage and the drop rate according to the illness.The cognitive function was assessed by using Montreal Cognitive Assessment Scale ( MoCA) and minimum mental state examination (MMSE) at admission and after one month of treatment.Results At one month after treatment, the MoCA score of the experimental group and the control group was (27.44 ±2.97), (25.08 ±0.54) respectively, which was higher than that before treatment, but the experimental group was significantly higher than the control group, the difference was statistically significant ( P<0.05 ) .The MMSE scores of the experimental group and the control group were (21.06 ±1.43), (20.29 ±1.16) respectively, the score did not changed compared with before treatment, and the difference was not statistically significant.Conclusion Xingnaojing injection can improve cognitive impairment in patients with acute cerebral infarction, MoCA is better than MMSE in assessmenting the cerebral infarction patients cognitive situation.