According to authoritative statistics in China, the incidence of diabetic foot is at least 15%, which means that 15% of diabetic patients are likely to suffer from diabetic foot of various degrees. The number of diabetic patients is very high, and there are more than 100 million diabetics in China. As diabetes progresses or the duration of the disease lengthens, it accelerates the process of atherosclerosis or even causes arteriosclerosis in patients. Patients with diabetic foot manifest as cold and numb feet, even sweat hair loss and pale skin on one side of the foot, intermittent claudication, that is, walking 200-300m can appear gastrocnemius pain, which can be properly relieved after rest, in addition, diabetic peripheral vasculopathy can also occur. Patients should be examined in advance, including neuromyography, ultrasound, etc. Scientific studies have confirmed that after having diabetes for more than 7 years, patients will develop different degrees of neurological or vascular lesions, but each individual’s specific situation is not the same. In case of cold feet, unpalpable dorsalis pedis artery and intermittent claudication, it is important to go to a specialized vascular surgery department for further examination and consultation.