Diabetic foot ulcers are one of the most common complications in diabetic patients. According to the clinical classification of diabetic foot, diabetic foot is classified as grade 0-5, where grade 0 refers to the presence of risk factors for the development of diabetic foot. grade 1-5 trauma local severity increases in order. This patient had a painful right foot with ulcerative exudate for more than 2 months and had a history of diabetes for more than 10 years. After careful treatment in our department, surgical amputation was eventually avoided and the ulcer was discharged with complete healing.