To analyze the clinical characteristic and prognosis of recurrent transient losses of consciousness (TLOC) secondary to internal carotid artery (ICA) stenosis. Methods: One case of recurrent TLOC secondary to ICA stenosis at our hospital was reported, and the relevant literature was reviewed. Results: The patient presented with recurrent TLOC, tremor of both upper limbs, and weakness of both lower limbs with inability to stand and walk. Digital subtraction angiography (DSA) showed severe stenosis at the beginning of the left ICA, and the stenosis rate was about 70%. We collected data of 20 cases of TLOC secondary to ICA stenosis from MEDLINE. Common clinical manifestations included weakness, dizziness, and blurred vision. Imaging manifestations were unilateral or bilateral ICA stenosis or occlusion. Conclusion: The loss of consciousness secondary to ICA stenosis is relatively rare. For patients with recurrent TLOC, we recommend screening for causes in the ICA system and performing head MRA or DSA to achieve early detection and treatment.