A case of spinal dural arteriovenous fistula is discussed. The patient was a 52-year-old female. The symptoms were intermittent loss of muscular strength and hypoesthesia of the lower extremities. MRI findings indicated swelling of the spinal cord in the T1 weighted image, high signal intensity of the spinal cord, and flow void of the surface of the spinal cord in the T2 weighted image. The final diagnosis was made by selective spinal arterial angiography. She was treated using transcatheter arterial embolization. The swelling of the spinal cord and high intensity area seen in MR imaging disappeared after embolization. Her symptoms were found to disappear completely one year after the treatment.