BACKGROUND:: With the development of computer technology, blood vessels virtual reality becomes possible. OBJECTIVE:: To construct a digital finite element model of the lower limb artery based on the CT sectional images for fluid dynamics simulation. METHODS:: DICOM images were harvested from patients with narrow artery CTA to build a three-dimensional model in MIMICS14.0. Then, the finite element model was obtained in ANSYS11.0, for analysis of the real conditions of fluid flow. RESULTS AND CONCLUSION:: A three-dimensional model of local stenosis vessel in MIMICS14.0 software. Then, the finite element model of blood vessels was obtained in ANSYS workbench, with 7 335 model nodes and 43 415 units. Finite element analysis was applied to obtain a series of visualized computational fluid data. We could the visual graphic of the flow velocity variations, pressure variations, blood flow path and Wall shear, and establish the required three-dimensional finite element model.Ma YS, Xie YH, Ren GS, Zhao CY, Li W, Cao L. Establishment of a three-dimensional finite element model of the lower limb artery and computational fluid dynamics simulation.Zhongguo Zuzhi Gongcheng Yanjiu yu Linchuang Kangfu. 2011;15(43): 8059-8062. [http://www.crter.cnhttp://en.zglckf.com](Figure is included in full-text article.)