The evaluation of urinary calculi was done in 84 patients of paraplegia and quadriplegia due to traumatic spinal cord injury. These patients were diagnosed by KUB and intravenous urography at National Veterans Hospital during 6 years from January, 1975 to December, 1980. The results were as follows; 1. Overall incidence of urinary calculi was 38.1 percent; Incidence of renal calculi was 8.3 percent, ureteral calculi 4.8 percent, and urinary bladder calculi 32.1 percent. 2. Relation of neurological level and incidence of urinary calculi were as follows; Cervical injury in 34.8 percent upper thoracic injury in 40.0 percent, lower thoracic injury in 45.0 percent, and lumbar injury in 36.5 percent. 3. Laterality was not to play a role in formation of urinary calculi. 4. The urinary calculi were developed 62.5 percent during the first 36 months following spinal cord injury. 5. The recurrence of urinary calculi was 40.6 percent; True recurrence was 15.6 percent and pseudorecurrence was 25.0 percent.