The treatment of diabetic cerebral infarction foot swelling needs to be based on the causes of edema such as diabetic nephropathy, deep vein thrombosis of the lower limbs and so on to choose the corresponding treatment such as drugs, surgery and so on. 1. Diabetic nephropathy, diabetic patients with poor glycemic control, there will be the possibility of kidney damage, manifested by increased urinary protein and creatinine, so the lower extremity edema. Patients with impaired renal function need to undergo renal replacement therapy, such as hemodialysis, peritoneal dialysis, etc., and at the same time, follow the doctor’s instructions to give hypoglycemic drugs, such as glibenclamide and so on. 2. Lower extremity deep vein thrombosis: the lower extremity veins of patients with cerebral infarction are easily blocked by plaque formation, and the venous blood can not return to the ventricle, causing edema. Consider doing lower extremity vascular ultrasound to clarify whether there is embolism. When lower extremity venous embolism occurs, use anticoagulants such as low molecular heparin subcutaneous injection as prescribed by the doctor, and monitor the status of plaque, and perform lower extremity vascular stenting if necessary. When foot swelling occurs in patients with diabetes mellitus with cerebral infarction, there may be other causes. It is recommended to consult a doctor in time, after a clear diagnosis, targeted treatment, to avoid blind use of medication to delay the condition.