Objective To investigate the differences in clinical features between the cerebral artery stenosis patients with or without unruptured intracranial aneurysms.Methods A retrospective analysis was performed for the data of patients who were diagnosed with cerebral artery stenosis by digital subtraction angiography in the Department of Neurology， The Second Affiliated Hospital of Xi'an Jiaotong University， from January 2018 to December 2019. According to the presence or absence of unruptured intracranial aneurysms， the patients were divided into case group （with unruptured intracranial aneurysms） and control group （without unruptured intracranial aneurysms）， and clinical features were compared between the two groups.Results A total of 877 patients with cerebral artery stenosis were enrolled， among whom 76 patients （8.7%） were enrolled in the case group. There were significant differences between the two groups in hypertension history， triglyceride， high-density lipoprotein， and intracranial artery stenosis （P<0.05）. There were no significant differences between the two groups in vascular inflammatory markers （neutrophil-to-lymphocyte ratio， platelet-to-lymphocyte ratio， monocyte-to-lymphocyte ratio， and monocyte-high-density lipoprotein ratio）（P>0.05）. The mean diameter of aneurysms was （3.18±1.66） mm in the case group， and most aneurysms were located in the internal carotid artery， with post-stenosis aneurysms as the most common type. The multivariate Logistic regression analysis showed that hypertension （P=0.014） and intracranial artery stenosis （P=0.028） were risk factors for unruptured intracranial aneurysms in patients with cerebral artery stenosis.Conclusions Hypertensive patients with intracranial arterial stenosis are more likely to develop unruptured intracranial aneurysms， and small and asymptomatic unruptured intracranial aneurysms do not cause significant inflammatory response.