Foot ulcers and gangrene are one of the most common complications in type 2 diabetic patients and have become the leading cause of disability and death. Many diabetic foot risk factor surveys have confirmed that poor self-management is a common risk factor for the development of diabetic foot in diabetic patients. Diabetic foot grading method wagne grading method: grade 0: presence of risk factors for foot ulcers, but no ulcers; grade l: skin surface breakdown, no infection; grade 2: deep ulcers, affecting muscles, no abscess or bone infection; grade 3: deep infection, with skeletal tissue lesions or abscess; grade 4; occurrence of limited gangrene (toe, heel or forefoot dorsum); grade 5: total foot gangrene. The Wagner grading system is the most commonly used tool for grading the severity of diabetic foot disease according to set criteria. Wagne’s grading of 1-2 is usually considered early stage diabetic foot, 3-4 represents advanced stage, and progression to grade 5 with amputation is the endpoint diabetic foot event. In clinical practice, it is common to see many patients with grade 1 or 2 diabetic foot who have a stable condition over a long period of time, while others progress rapidly in a short period of time. Most scholars believe that a high level of diabetes self-management is a more important prevention and treatment pathway for the diabetic foot. At present, diabetic foot is still an incurable disease with a long and slow disease course, many opportunities for progression, long monitoring and treatment cycles, and a high economic burden. Therefore, the self-management behavior of diabetic patients includes diet, exercise, medication, and blood glucose monitoring. This will enable diabetic foot patients to maintain long-term stability of the whole body and foot condition, and their survival time and quality of life will be significantly improved. In conclusion, diabetic foot is a disease that requires long-term self-management, and a high level of diabetic self-management ability is the behavior and intervention method for diabetic foot prevention and treatment that has been unanimously recommended by experts and scholars at home and abroad in recent years.