Background <p> Our research group has been conducting anatomical research on pig cadavers infused with cadaveric vascular perfusion technology based on lard for one year, and the experimental results have been satisfactory. The purpose of this descriptive study was to explore the feasibility of applying this technology in bone and soft tissue flap (BSTF) training models and to summarize the key points of this technology.</p> Methods <p> The carotid arteries, lateral saphenous veins and venae subcutaneae abdominis of thirty pig cadavers were infused with colored lard. The infused specimens were divided into a low-temperature group (Group L) and a normal-temperature group (Group N), which were used for anatomical research and surgical training, respectively. The primary parameters included the anatomy and surgical resection of the pedicles of the BSTFs.</p> Results <p> In both groups of specimens, all levels of arteries were well infused. Only 20% of the venous pedicles in the BSTFs were infused. None of the samples had a peculiar smell. In Group L, the working space was clean, and the arterial pedicles of the BSTFs could be dissected without any difficulties. Moreover, the solidified lard in cadavers makes it possible to completely free the arterial tree. In Group N, the working space was often contaminated by leakage of the lard, which simulates bleeding in the clinical situation.</p> Conclusions <p> Lard is particularly suitable for vascular perfusion in cadaveric models of BSTFs. This technology is worthy of promotion.</p> <p>Level of Evidence: not gradable.</p> <p>Clinical Trial Number: Not applicable</p>