Objective To explore a three-dimensional visualized modeling method of miniature pig model of renal vasculature and the value of its application. Methods A pair of fresh normal miniature pig kidneys was selected,and to fill the abdominal aorta with epoxy resin-lead oxide (red) and the posterior cava vein (ligation of the right renal vein) with epoxy resin-titanium dioxide (yellow) for casting. Then 128 layer spiral CT thin layer scanning was applied to obtain a twodimensional image data set of the casted specimens to segment and reconstruct the three-dimensional visualization model of miniature pig renal vasculature using Mimics 19. 0 software. Results Using Mimics 19. 0 software, we reconstructed a three-dimensional visualization model of miniature pig renal vasculature. The distribution and walking tracks of the renal artery and vein in this model were in accordance with the casted specimens. The renal artery and vein were separately displayed by vascular threshold segmentation. The effect was ideal and the three-dimensional sense was strong.Conclusions A three-dimensional visualization model of miniature pig renal vasculature is reconstructed based on casted specimens and effective segmentation. It may provide a simulation platform and important guidance for research and virtual training in urology.