There are several complications of distal radiug fracture such as median nerve injury, malunion nonunion, rupture of EPL, and ischemic contracture. Lesion of ulnar nerve as a complication of fracture of the distal radius are very rare. The authors report 1 case of the distal radius fracture with ulnar nerve palsy. The electromyography & nerve-conduction studies showed incomplete axonotmesis of ulnar nerve on 1 month following injury. A second electromyography & nerve-conduction study two months after injury showed complete recovery of nerve function.