Abstract： Objective To study the clinical features and surgical management of intracranial thrombotic giant aneurysms.Methods A retrospective study was performed for 11 patients with intracranial thrombotic giant aneurysms.The clinical presentation, clinical classification, surgical approaches and therapeutic efficacy were reviewed.Results The treatment included thrombectomy - aneurysm clip reconstruction in 9 cases, thrombectomy - aneurysm isolate in 1, and cervical internal carotid artery ligation in 1.The postoperative DSA or CTA showed that complete angiographic obliteration was achieved in 10 cases.Follow - up period was from 3 months to 6 months, the clinical outcomes of these patients were evaluated by Glasgow Outcome Scale grades.GOS of 8 cases were improved.There were minor deficit in 1 case, major deficit in 1 and one death.Conclusions The surgical treatment for intracranial thrombotic giant aneurysms is very difficult.It is a good method to occlude the parent artery temporally, eliminate intraaneurysmal thrombus and reconstruct parent artery.Intraoperative microvascular Doppler sonography (MVD) monitoring is helpful.