Objective To explore the clinical risk factors influencing the short-term prognosis of transient ischemic attack(TTA).Methods We collected the clinical data of 162 patients with TIA in this study.All the patients were followed up for 90 days.Multiple factor analysis was performed by Cox regression model(SPSS 13.0 software).Results Within 90 days after TIA,40 of 162 patients(24.7%)experienced cerebral infarction.The risk of cerebral infaition during the first 30 days after TIA was higher.The independent risk factors for the prognosis within 90 days after TIA were the duration of TIA(RR=17.172,P＜0.01),hyperfibrinogenemia(RR=3.071,P＜0.01),abnormal blood glucose level(RR=2.651,P＜0.01),and hypertension(RR=3.356,P＜0.01).Conclusion The duration of TIA,hyperfibrinogenemia,abnormal blood glucose level,and hypertension are independent risk factors for the short-term prognosis of TIA.