Objective To evaluate the clinical effect of endovascular embolization for traumatic carotid cavernous fistula (TCCF).Methods In 20 patients with TCCF,10 were treated with the detachable balloon embolization,4 were treated with the detachable balloon embolization and coils,2 were treated with coils alone,3 were treated with coils and Onyx,and 1 was treated with covered stenting.Two of them were embolized again because of leaking balloon.Results Eighteen of the 20 patients were embolizeded successfully once,2 were embolizeded successfully twice.The patency rate of internal carotid artery was 100％.No operation-related complications occurred.Conclusions Endovascular embolization is a simply,safe and reliable method of curative effect for the treatment of TCCF.