Abstract: Skin perfusion pressure (SPP) is the perfusion pressure at the skin level, and it can serve as an index of microcirculation in skin and subcutaneous tissue. SPP can be measured simply, with less injury and high reproducibility in a short time, without interfering vascular calcification. It has been widely used in various fields, including evaluation of critical limb ischaemia and effect of vascular surgery, selection of proper level of amputation, and prediction of wound healing. So far, there is no relevant reports about the application of SPP in China. This article reviews the clinical application of SPP abroad.