Abstract: Objective To observe the efficacy differences and influencing factors of inter-ventional embolisation at different times on patients with intracranial aneurysm (AN).Methods The clinical data of 60 AN patients underwent interventional embolisation in our hospital from Feb. 2010 to Feb.2013 were retrospectively analyzed and divided into early group (26 cases)and post-poned group (34 cases)according to the interventional embolisation at different times.Embolism severity and complications were compared between two groups and the short-term outcomes and rel-evant influencing factors were observed.Results The number of complete embolism was larger in early group than that in postpone group (P <0.05),but there were no significant differences in major and partial embolisms (P > 0 .0 5 ).The total rate of complications in early group was 7.69%,but had no significant difference with the 20.59% in postpone group (P >0.05).43 pa-tients had well short-term outcomes and 17 with bad ones when discharg (P >0.05).Genders, ages and AN diameter had no effect on the short-term outcomes,but the history of hypertension,multiple aneuryson ,Hunt - Hess degrees and the times for interventional embolisation had significant association with the outcomes (P <0.05,P <0.01).Conclusion The interventional embolisation conducted within 3 d after AN onset can evidently improve the rate of complete em-bolism without increasing the rate of complications.Hypertension,multiple aneuryson and Hunt-Hess degrees are the risk factors that influence the outcomes of AN patients.