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OBJECTIVE In order to explore the applications of 3D-Digital Subtraction Angiography (3D-DSA) double-volume reconstruction technique (DVRT) in endovascular embolization for the treatment of intracranial aneurysm. METHODS a cohort of 112 patients with a total of 127 intracranial aneurysms admitted to the neurosurgery department from June 2018 to October 2019 were selected. Cerebrovascular angiographies were performed after admission. Patients were divided into observation group (56/112) and control group (56/112) randomly when endovascular embolization was performed. Subjects in the control group were treated with 2D-DSA technique, while patients in the observation group were treated with 3D-DSA DVRT. Raymond method was used to determine the degree of embolism. RESULTS There was no significant difference in gender, blood pressure, cerebral atherosclerosis, aneurysm site or size, contrast agent dosage, X-ray dose or surgical cost between the two groups. There was no postoperative recurrence in the observation group. However, the recurrence rate in the control group is 10.7% (6/56). Postoperative thrombosis occurred in 1 case (1/56, 1.8%) in the observation group and 7 cases (7/56, 12.5%) in the control group. No postoperative cerebral infarction was recorded in the observation group, while 5 cases (8.9%, 5/56) in the control group presented with postoperative cerebral infarction. CONCLUSION 3D-DVRT for intracranial aneurysm embolization provides the best working angle, clearly shows the process of aneurysm embolization and its relationship with peripheral vessels and reduces the occurrence of surgical complications including postoperative recurrence, thrombosis and cerebral infarction.