Abstract： Objective： To observe the clinical efficacy of Yinxingye Tablets combined with Qiangli Dingxuan Capsules in the treatment of vertigo due to cerebral arterial insufficiency and their effects on hemodynamics and vertigo severity. Methods： A retrospective analysis was conducted on 100 patients with vertigo due to cerebral arterial insufficiency admitted to Xianju People's Hospital from June 2021 to June 2024. The patients were divided into the control group （49 cases） and the observation group （51 cases） based on treatment methods. The control group was treated with Qiangli Dingxuan Capsules，and the observation group was treated with Yinxingye Tablets combined with Qiangli Dingxuan Capsules. Both groups were treated for two weeks. The clinical effects in the two groups were evaluated， and the changes in hemodynamic parameters [whole blood high-shear viscosity （HBV），plasma viscosity （PV），whole blood low-shear viscosity （LBV）] and vertigo severity [Dizziness Handicap Inventory （DHI） scores] were compared before and after treatment between the two groups. Results： The total effective rate in the observation group was 92.16% （47/51），significantly higher than that of 77.55% （38/49） in the control group （P＜0.05）. After two weeks of treatment，the levels of HBV，PV，and LBV in the two groups were decreased compared to those before treatment （P＜ 0.05），with the observation group showing lower levels of HBV，PV，and LBV than the control group （P＜0.05）. After two weeks of treatment，the sub-item scores of DHI，such as physical，emotional，and function in both groups were decreased compared to those before treatment （P＜0.05），with the observation group showing lower scores than the control group （P＜0.05）. Conclusion： The combination of Yinxingye Tablets and Qiangli Dingxuan Capsules exerts certain efficacy in treating vertigo due to cerebral arterial insufficiency，significantly improving hemodynamic parameters and alleviating vertigo symptoms.